Screws & Bolts

Material Stainless Steel (A2) Finish Natural Manufacturing Standard ISO 7380 Screw Thread Pitch 0.7mm Thread M4 (4mm), Right Hand Thread Hexagon Width Across Flats / Allen Key Size (J) 2.5mm Maximum Head Diameter (D) 7.6mm Maximum Head Length (H) 2.2mm Minimum Hexagon Socket Depth (P) 1.03mm   See a problem with this specification? Let us know.

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Material High Tensile Steel (10.9) Finish Zinc Plated Manufacturing Standard ISO 7380 Screw Thread Pitch 0.7mm Thread M4 (4mm), Right Hand Thread Hexagon Width Across Flats / Allen Key Size (J) 2.5mm Maximum Head Diameter (D) 7.6mm Maximum Head Length (H) 2.2mm Minimum Hexagon Socket Depth (P) 1.03mm   See a problem with this specification? Let us know.

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Material Stainless Steel (A2) Finish CB10 Manufacturing Standard DIN 912 Screw Thread Pitch 0.7mm Thread M4 (4mm), Right Hand Thread Socket / Allen Key Size (J) 3mm Head Diameter [Max] (D) 7mm Head Diameter (D) Tolerance +0/-0.22mm Head Length [Max] (H) 4mm Head Length (H) Tolerance +0/-0.18mm Hexagon Depth (P) 2mm    See a problem with this specification? Let us know.

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Material High Tensile Steel (12.9) Finish Self Colour Manufacturing Standard DIN 912 Screw Thread Pitch 0.7mm Thread M4 (4mm), Right Hand Thread Socket / Allen Key Size (J) 3mm Head Diameter [Max] (D) 7mm Head Diameter (D) Tolerance +0/-0.22mm Head Length [Max] (H) 4mm Head Length (H) Tolerance +0/-0.18mm Hexagon Depth (P) 2mm    See a problem with this specification? Let us know.

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Material Stainless Steel (A2) Finish Natural Manufacturing Standard DIN 912 Screw Thread Pitch 0.7mm Thread M4 (4mm), Right Hand Thread Socket / Allen Key Size (J) 3mm Head Diameter [Max] (D) 7mm Head Diameter (D) Tolerance +0/-0.22mm Head Length [Max] (H) 4mm Head Length (H) Tolerance +0/-0.18mm Hexagon Depth (P) 2mm    See a problem with this specification? Let us know.

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Material High Tensile Steel (8.8) Finish Zinc Plated Manufacturing Standard DIN 912 Screw Thread Pitch 0.7mm Thread M4 (4mm), Right Hand Thread Socket / Allen Key Size (J) 3mm Head Diameter [Max] (D) 7mm Head Diameter (D) Tolerance +0/-0.22mm Head Length [Max] (H) 4mm Head Length (H) Tolerance +0/-0.18mm Hexagon Depth (P) 2mm    See a problem with this specification? Let us know.

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M4 Socket Countersunk Screws (DIN 7991) in self-colour high tensile steel (10.9) are specific types of screws with particular characteristics: M4: This refers to the metric thread size of the screw. M4 indicates that the diameter of the screw is 4 millimetres. Socket: These screws have a socket (hexagonal) drive, which means you'll need a hex key or Allen wrench to install or remove them. The socket drive design provides a more secure and efficient way to apply torque compared to other drive types like slotted or Phillips. Countersunk: Countersunk screws have a conical head with a flat top. They are designed to sit flush with the surface when installed, giving a neat and smooth finish. DIN 7991: This refers to the standard or specification that the screw follows. DIN 7991 is a standard that specifies the dimensions, tolerances, and other requirements for socket countersunk screws. Self Colour: "Self-colour" means that the screws have not undergone any surface finishing treatment like plating or coating. They are made of plain steel and may be susceptible to corrosion, so they are often used in applications where appearance is not a concern, and other corrosion protection methods are employed. High Tensile Steel (10.9): This indicates the strength and material grade of the screws. "High tensile" means that the steel used is strong and can withstand a significant amount of tensile (pulling) force. The "10.9" is a classification that specifies the hardness and strength of the steel. In this case, 10.9 indicates a tensile strength of 1000 N/mm² and a minimum yield strength of 900 N/mm². Material High Tensile Steel (10.9) Finish Self Colour Manufacturing Standard DIN 7991 Screw Thread Pitch 0.7mm Thread M4 (4mm), Right Hand Thread Countersunk Angle (CA) 90 Degrees Head Length [Max] (H) 2.48mm Head Diameter [Max] (D) 8.96mm Head Diameter [Min] (D) 7.53mm Hexagon Across Flats / Allen Key Size (J) 2.5mm Hexagon Depth (P) 1.5mm   For larger quantities or sizes not listed, please email frank@franksfasteners.co.uk and we will be happy to provide you with a quotation.

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Material Stainless Steel (A2) Finish Natural Manufacturing Standard DIN 7991 Screw Thread Pitch 0.7mm Thread M4 (4mm), Right Hand Thread Countersunk Angle (CA) 90 Degrees Head Length [Max] (H) 2.48mm Head Diameter [Max] (D) 8.96mm Head Diameter [Min] (D) 7.53mm Hexagon Across Flats / Allen Key Size (J) 2.5mm Hexagon Depth (P) 1.5mm   See a problem with this specification? Let us know.

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Material A2 Stainless Steel Finish CB10 Manufacturing Standard ISO 7380-2 Screw Thread Pitch 0.7mm Thread M4 (4mm), Right Hand Thread  

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Upgrade your fastening game with these precision-engineered M4 x 10mm flange socket button screws, manufactured to ISO 7380-2 standards for reliability, consistency, and performance in demanding applications. Designed with an integrated flange head, these screws provide a wider bearing surface, distributing load more evenly and reducing the need for washers. The low-profile button head delivers a clean, professional finish while maintaining strong clamping force. Crafted from high tensile steel (Grade 10.9), these fasteners offer exceptional strength and durability, making them ideal for mechanical, automotive, industrial, and DIY applications. The zinc-plated finish adds a protective layer against corrosion, extending service life even in moderately harsh environments. Size: M4 x 10mm Standard: ISO 7380-2 (Flange Button Head Socket Screws) Material: High Tensile Steel Grade: 10.9 for superior strength Finish: Zinc Plated for corrosion resistance Head Type: Flange Button Head (built-in washer effect) Drive Type: Hex Socket (Allen key) Perfect for use in: Automotive assemblies Machinery and equipment Electronics enclosures Furniture and fittings General engineering projects

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Slotted countersunk screws are a type of fastener with a slotted drive and a countersunk (also known as a flat or flush) head. The slotted drive has a single straight slot across the head of the screw, which is designed to be turned using a flathead screwdriver. The countersunk head has an angled shape that allows the screw to sit flush with the surface it is fastened to, making it ideal for applications where a smooth, flush finish is desired.   Material Stainless Steel (A2) Finish Natural Manufacturing Standard DIN 963 Screw Thread Pitch 0.7mm Thread M4 (4mm), Right Hand Thread Countersunk Angle (CA) 90 Degrees (+2/-0) Head Length (H) 2.2mm Maximum Head Diameter (D) 7.5mm Slot Depth (F) 1.1mm Slot Width (A) 1mm   For larger quantities or sizes not listed, please email frank@franksfasteners.co.uk and we will be happy to provide you with a quotation.

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Material High Tensile Steel (10.9) Finish Self Colour Manufacturing Standard ISO 7380 Screw Thread Pitch 0.7mm Thread M4 (4mm), Right Hand Length (L) 10mm Allen Key Size (S) 2.5mm Maximum Head Diameter (DK) 7.6mm Maximum Head Depth (K) 2.2mm   High-strength fasteners are designed for use in applications requiring reliable performance under heavy loads. These screws feature a rounded button head with a hexagonal socket drive, allowing for easy installation and removal with an Allen key.  Made from self-colour high tensile steel with a 10.9 grade, they offer superior strength and durability. Ideal for engineering, machinery, and automotive applications where strong and secure fastening is required. The self-colour finish provides a raw steel look, without additional coatings.

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Material Stainless Steel (A2) Finish CB10 Manufacturing Standard ISO 7380 Screw Thread Pitch 0.7mm Thread M4 (4mm), Right Hand Thread Hexagon Width Across Flats / Allen Key Size (J) 2.5mm Maximum Head Diameter (D) 7.6mm Maximum Head Length (H) 2.2mm Minimum Hexagon Socket Depth (P) 1.03mm  

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Material Stainless Steel A2 Finish CB10 Manufacturing Standard DIN 7991 Screw Thread Pitch 0.7mm Thread M4 (4mm), Right Hand Thread Countersunk Angle (CA) 90 Degrees Head Length [Max] (H) 2.48mm Head Diameter [Max] (D) 8.96mm Head Diameter [Min] (D) 7.53mm Hexagon Across Flats / Allen Key Size (J) 2.5mm Hexagon Depth (P) 1.5mm   Upgrade your fastening game with these M4 x 10mm socket countersunk screws, engineered to deliver strength, precision, and a sleek low-profile finish. Manufactured to DIN 7991 standards, these screws sit flush with the surface, making them ideal for applications where both performance and aesthetics matter.Crafted from A2 stainless steel, these screws offer excellent resistance to rust and corrosion, making them suitable for indoor and light outdoor use. The black finish adds an extra layer of protection while giving your project a clean, professional appearance.

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Material High Tensile Steel (10.9) Finish Self Colour Manufacturing Standard ISO 7380 Screw Thread Pitch 0.7mm Thread M4 (4mm), Right Hand Length (L) 14mm Allen Key Size (S) 2.5mm Maximum Head Diameter (DK) 7.6mm Maximum Head Depth (K) 2.2mm   High-strength fasteners are designed for use in applications requiring reliable performance under heavy loads. These screws feature a rounded button head with a hexagonal socket drive, allowing for easy installation and removal with an Allen key.  Made from self-colour high tensile steel with a 10.9 grade, they offer superior strength and durability. Ideal for engineering, machinery, and automotive applications where strong and secure fastening is required. The self-colour finish provides a raw steel look, without additional coatings.

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Upgrade your fastening game with these precision-engineered M4 x 16mm flange socket button screws, manufactured to ISO 7380-2 standards for reliability, consistency, and performance in demanding applications. Designed with an integrated flange head, these screws provide a wider bearing surface, distributing load more evenly and reducing the need for washers. The low-profile button head delivers a clean, professional finish while maintaining strong clamping force. Crafted from high tensile steel (Grade 10.9), these fasteners offer exceptional strength and durability, making them ideal for mechanical, automotive, industrial, and DIY applications. The zinc-plated finish adds a protective layer against corrosion, extending service life even in moderately harsh environments. Size: M4 x 16mm Standard: ISO 7380-2 (Flange Button Head Socket Screws) Material: High Tensile Steel Grade: 10.9 for superior strength Finish: Zinc Plated for corrosion resistance Head Type: Flange Button Head (built-in washer effect) Drive Type: Hex Socket (Allen key) Perfect for use in: Automotive assemblies Machinery and equipment Electronics enclosures Furniture and fittings General engineering projects

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Slotted countersunk screws are a type of fastener with a slotted drive and a countersunk (also known as a flat or flush) head. The slotted drive has a single straight slot across the head of the screw, which is designed to be turned using a flathead screwdriver. The countersunk head has an angled shape that allows the screw to sit flush with the surface it is fastened to, making it ideal for applications where a smooth, flush finish is desired.   Material Stainless Steel (A2) Finish Natural Manufacturing Standard DIN 963 Screw Thread Pitch 0.7mm Thread M4 (4mm), Right Hand Thread Countersunk Angle (CA) 90 Degrees (+2/-0) Head Length (H) 2.2mm Maximum Head Diameter (D) 7.5mm Slot Depth (F) 1.1mm Slot Width (A) 1mm   For larger quantities or sizes not listed, please email frank@franksfasteners.co.uk and we will be happy to provide you with a quotation.

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Material High Tensile Steel (10.9) Finish Self Colour Manufacturing Standard ISO 7380 Screw Thread Pitch 0.7mm Thread M4 (4mm), Right Hand Length (L) 16mm Allen Key Size (S) 2.5mm Maximum Head Diameter (DK) 7.6mm Maximum Head Depth (K) 2.2mm   High-strength fasteners are designed for use in applications requiring reliable performance under heavy loads. These screws feature a rounded button head with a hexagonal socket drive, allowing for easy installation and removal with an Allen key.  Made from self-colour high tensile steel with a 10.9 grade, they offer superior strength and durability. Ideal for engineering, machinery, and automotive applications where strong and secure fastening is required. The self-colour finish provides a raw steel look, without additional coatings.

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Material Steel 10.9 Finish Zinc Plated Manufacturing Standard DIN 7991 Screw Thread Pitch 0.7mm Thread M4 (4mm), Right Hand Thread Countersunk Angle (CA) 90 Degrees Head Length [Max] (H) 2.48mm Head Diameter [Max] (D) 8.96mm Head Diameter [Min] (D) 7.53mm Hexagon Across Flats / Allen Key Size (J) 2.5mm Hexagon Depth (P) 1.5mm Achieve a clean, flush finish with these M4 x 16mm Socket Countersunk Screws, manufactured to DIN 7991 standards and made from high-tensile Grade 10.9 steel. Finished with zinc plating for added corrosion resistance, these screws are ideal for applications where both strength and a smooth surface are essential. Designed with a hex socket drive, they allow precise tightening and high torque performance without compromising the head.

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Material A2 Stainless Steel Finish CB10 Manufacturing Standard ISO 7380-2 Screw Thread Pitch 0.7mm Thread M4 (4mm), Right Hand Thread  

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Upgrade your fastening game with these precision-engineered M4 x 20mm flange socket button screws, manufactured to ISO 7380-2 standards for reliability, consistency, and performance in demanding applications. Designed with an integrated flange head, these screws provide a wider bearing surface, distributing load more evenly and reducing the need for washers. The low-profile button head delivers a clean, professional finish while maintaining strong clamping force. Crafted from high tensile steel (Grade 10.9), these fasteners offer exceptional strength and durability, making them ideal for mechanical, automotive, industrial, and DIY applications. The zinc-plated finish adds a protective layer against corrosion, extending service life even in moderately harsh environments. Size: M4 x 20mm Standard: ISO 7380-2 (Flange Button Head Socket Screws) Material: High Tensile Steel Grade: 10.9 for superior strength Finish: Zinc Plated for corrosion resistance Head Type: Flange Button Head (built-in washer effect) Drive Type: Hex Socket (Allen key) Perfect for use in: Automotive assemblies Machinery and equipment Electronics enclosures Furniture and fittings General engineering projects

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Slotted countersunk screws are a type of fastener with a slotted drive and a countersunk (also known as a flat or flush) head. The slotted drive has a single straight slot across the head of the screw, which is designed to be turned using a flathead screwdriver. The countersunk head has an angled shape that allows the screw to sit flush with the surface it is fastened to, making it ideal for applications where a smooth, flush finish is desired.   Material Stainless Steel (A2) Finish Natural Manufacturing Standard DIN 963 Screw Thread Pitch 0.7mm Thread M4 (4mm), Right Hand Thread Countersunk Angle (CA) 90 Degrees (+2/-0) Head Length (H) 2.2mm Maximum Head Diameter (D) 7.5mm Slot Depth (F) 1.1mm Slot Width (A) 1mm   For larger quantities or sizes not listed, please email frank@franksfasteners.co.uk and we will be happy to provide you with a quotation.

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Material High Tensile Steel (10.9) Finish Self Colour Manufacturing Standard ISO 7380 Screw Thread Pitch 0.7mm Thread M4 (4mm), Right Hand Length (L) 20mm Allen Key Size (S) 2.5mm Maximum Head Diameter (DK) 7.6mm Maximum Head Depth (K) 2.2mm   High-strength fasteners are designed for use in applications requiring reliable performance under heavy loads. These screws feature a rounded button head with a hexagonal socket drive, allowing for easy installation and removal with an Allen key.  Made from self-colour high tensile steel with a 10.9 grade, they offer superior strength and durability. Ideal for engineering, machinery, and automotive applications where strong and secure fastening is required. The self-colour finish provides a raw steel look, without additional coatings.

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Material Stainless Steel (A2) Finish CB10 Manufacturing Standard ISO 7380 Screw Thread Pitch 0.7mm Thread M4 (4mm), Right Hand Thread Hexagon Width Across Flats / Allen Key Size (J) 2.5mm Maximum Head Diameter (D) 7.6mm Maximum Head Length (H) 2.2mm Minimum Hexagon Socket Depth (P) 1.03mm  

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Material Stainless Steel A2 Finish CB10 Manufacturing Standard DIN 7991 Screw Thread Pitch 0.7mm Thread M4 (4mm), Right Hand Thread Countersunk Angle (CA) 90 Degrees Head Length [Max] (H) 2.48mm Head Diameter [Max] (D) 8.96mm Head Diameter [Min] (D) 7.53mm Hexagon Across Flats / Allen Key Size (J) 2.5mm Hexagon Depth (P) 1.5mm   Upgrade your fastening game with these M4 x 20mm socket countersunk screws, engineered to deliver strength, precision, and a sleek low-profile finish. Manufactured to DIN 7991 standards, these screws sit flush with the surface, making them ideal for applications where both performance and aesthetics matter.Crafted from A2 stainless steel, these screws offer excellent resistance to rust and corrosion, making them suitable for indoor and light outdoor use. The black finish adds an extra layer of protection while giving your project a clean, professional appearance.

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A practical, budget-friendly mixed batch of M4 socket button head screws, ideal for general-purpose use where function matters more than flawless appearance. This 1kg pack contains a mix of 25mm and 30mm length screws. Please note that the exact quantity of each size is not specified. Manufactured from zinc plated steel 10.9, these screws offer standard corrosion resistance and reliable strength for a wide range of applications, including DIY projects, repairs, and light industrial use. ⚠️ Condition Notice:These screws do show visible signs of corrosion due to storage conditions. However, this is purely cosmetic and does not affect their performance or usability. If you're after a low-cost, functional fixing solution, these are a solid choice. Size: M4 (metric thread) Lengths included: 25mm & 30mm (mixed) Head type: Socket button head Material: Zinc plated steel Total weight: 1kg Condition: Cosmetic corrosion present, fully usable Perfect for workshops, garages, or anyone needing dependable screws at a fraction of the usual cost.

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Material A2 Stainless Steel Finish CB10 Manufacturing Standard ISO 7380-2 Screw Thread Pitch 0.7mm Thread M4 (4mm), Right Hand Thread  

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Upgrade your fastening game with these precision-engineered M4 x 25mm flange socket button screws, manufactured to ISO 7380-2 standards for reliability, consistency, and performance in demanding applications. Designed with an integrated flange head, these screws provide a wider bearing surface, distributing load more evenly and reducing the need for washers. The low-profile button head delivers a clean, professional finish while maintaining strong clamping force. Crafted from high tensile steel (Grade 10.9), these fasteners offer exceptional strength and durability, making them ideal for mechanical, automotive, industrial, and DIY applications. The zinc-plated finish adds a protective layer against corrosion, extending service life even in moderately harsh environments. Size: M4 x 25mm Standard: ISO 7380-2 (Flange Button Head Socket Screws) Material: High Tensile Steel Grade: 10.9 for superior strength Finish: Zinc Plated for corrosion resistance Head Type: Flange Button Head (built-in washer effect) Drive Type: Hex Socket (Allen key) Perfect for use in: Automotive assemblies Machinery and equipment Electronics enclosures Furniture and fittings General engineering projects

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Material High Tensile Steel (10.9) Finish Self Colour Manufacturing Standard ISO 7380 Screw Thread Pitch 0.7mm Thread M4 (4mm), Right Hand Length (L) 25mm Allen Key Size (S) 2.5mm Maximum Head Diameter (DK) 7.6mm Maximum Head Depth (K) 2.2mm   High-strength fasteners are designed for use in applications requiring reliable performance under heavy loads. These screws feature a rounded button head with a hexagonal socket drive, allowing for easy installation and removal with an Allen key.  Made from self-colour high tensile steel with a 10.9 grade, they offer superior strength and durability. Ideal for engineering, machinery, and automotive applications where strong and secure fastening is required. The self-colour finish provides a raw steel look, without additional coatings.

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Material Steel 10.9 Finish Zinc Plated Manufacturing Standard DIN 7991 Screw Thread Pitch 0.7mm Thread M4 (4mm), Right Hand Thread Countersunk Angle (CA) 90 Degrees Head Length [Max] (H) 2.48mm Head Diameter [Max] (D) 8.96mm Head Diameter [Min] (D) 7.53mm Hexagon Across Flats / Allen Key Size (J) 2.5mm Hexagon Depth (P) 1.5mm Achieve a clean, flush finish with these M4 x 25mm Socket Countersunk Screws, manufactured to DIN 7991 standards and made from high-tensile Grade 10.9 steel. Finished with zinc plating for added corrosion resistance, these screws are ideal for applications where both strength and a smooth surface are essential. Designed with a hex socket drive, they allow precise tightening and high torque performance without compromising the head.

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Upgrade your fastening game with these precision-engineered M4 x 30mm flange socket button screws, manufactured to ISO 7380-2 standards for reliability, consistency, and performance in demanding applications. Designed with an integrated flange head, these screws provide a wider bearing surface, distributing load more evenly and reducing the need for washers. The low-profile button head delivers a clean, professional finish while maintaining strong clamping force. Crafted from high tensile steel (Grade 10.9), these fasteners offer exceptional strength and durability, making them ideal for mechanical, automotive, industrial, and DIY applications. The zinc-plated finish adds a protective layer against corrosion, extending service life even in moderately harsh environments. Size: M4 x 30mm Standard: ISO 7380-2 (Flange Button Head Socket Screws) Material: High Tensile Steel Grade: 10.9 for superior strength Finish: Zinc Plated for corrosion resistance Head Type: Flange Button Head (built-in washer effect) Drive Type: Hex Socket (Allen key) Perfect for use in: Automotive assemblies Machinery and equipment Electronics enclosures Furniture and fittings General engineering projects

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Slotted countersunk screws are a type of fastener with a slotted drive and a countersunk (also known as a flat or flush) head. The slotted drive has a single straight slot across the head of the screw, which is designed to be turned using a flathead screwdriver. The countersunk head has an angled shape that allows the screw to sit flush with the surface it is fastened to, making it ideal for applications where a smooth, flush finish is desired.   Material Stainless Steel (A2) Finish Natural Manufacturing Standard DIN 963 Screw Thread Pitch 0.7mm Thread M4 (4mm), Right Hand Thread Countersunk Angle (CA) 90 Degrees (+2/-0) Head Length (H) 2.2mm Maximum Head Diameter (D) 7.5mm Slot Depth (F) 1.1mm Slot Width (A) 1mm   For larger quantities or sizes not listed, please email frank@franksfasteners.co.uk and we will be happy to provide you with a quotation.

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Material High Tensile Steel (10.9) Finish Self Colour Manufacturing Standard ISO 7380 Screw Thread Pitch 0.7mm Thread M4 (4mm), Right Hand Length (L) 30mm Allen Key Size (S) 2.5mm Maximum Head Diameter (DK) 7.6mm Maximum Head Depth (K) 2.2mm   High-strength fasteners are designed for use in applications requiring reliable performance under heavy loads. These screws feature a rounded button head with a hexagonal socket drive, allowing for easy installation and removal with an Allen key.  Made from self-colour high tensile steel with a 10.9 grade, they offer superior strength and durability. Ideal for engineering, machinery, and automotive applications where strong and secure fastening is required. The self-colour finish provides a raw steel look, without additional coatings.

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Material Stainless Steel (A2) Finish CB10 Manufacturing Standard ISO 7380 Screw Thread Pitch 0.7mm Thread M4 (4mm), Right Hand Thread Hexagon Width Across Flats / Allen Key Size (J) 2.5mm Maximum Head Diameter (D) 7.6mm Maximum Head Length (H) 2.2mm Minimum Hexagon Socket Depth (P) 1.03mm  

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Material Stainless Steel A2 Finish CB10 Manufacturing Standard DIN 7991 Screw Thread Pitch 0.7mm Thread M4 (4mm), Right Hand Thread Countersunk Angle (CA) 90 Degrees Head Length [Max] (H) 2.48mm Head Diameter [Max] (D) 8.96mm Head Diameter [Min] (D) 7.53mm Hexagon Across Flats / Allen Key Size (J) 2.5mm Hexagon Depth (P) 1.5mm   Upgrade your fastening game with these M4 x 30mm socket countersunk screws, engineered to deliver strength, precision, and a sleek low-profile finish. Manufactured to DIN 7991 standards, these screws sit flush with the surface, making them ideal for applications where both performance and aesthetics matter.Crafted from A2 stainless steel, these screws offer excellent resistance to rust and corrosion, making them suitable for indoor and light outdoor use. The black finish adds an extra layer of protection while giving your project a clean, professional appearance.

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Material Steel 10.9 Finish Zinc Plated Manufacturing Standard DIN 7991 Screw Thread Pitch 0.7mm Thread M4 (4mm), Right Hand Thread Countersunk Angle (CA) 90 Degrees Head Length [Max] (H) 2.48mm Head Diameter [Max] (D) 8.96mm Head Diameter [Min] (D) 7.53mm Hexagon Across Flats / Allen Key Size (J) 2.5mm Hexagon Depth (P) 1.5mm Achieve a clean, flush finish with these M4 x 30mm Socket Countersunk Screws, manufactured to DIN 7991 standards and made from high-tensile Grade 10.9 steel. Finished with zinc plating for added corrosion resistance, these screws are ideal for applications where both strength and a smooth surface are essential. Designed with a hex socket drive, they allow precise tightening and high torque performance without compromising the head.

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Material High Tensile Steel (10.9) Finish Self Colour Manufacturing Standard ISO 7380 Screw Thread Pitch 0.7mm Thread M4 (4mm), Right Hand Length (L) 35mm Allen Key Size (S) 2.5mm Maximum Head Diameter (DK) 7.6mm Maximum Head Depth (K) 2.2mm   High-strength fasteners are designed for use in applications requiring reliable performance under heavy loads. These screws feature a rounded button head with a hexagonal socket drive, allowing for easy installation and removal with an Allen key.  Made from self-colour high tensile steel with a 10.9 grade, they offer superior strength and durability. Ideal for engineering, machinery, and automotive applications where strong and secure fastening is required. The self-colour finish provides a raw steel look, without additional coatings.

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Slotted countersunk screws are a type of fastener with a slotted drive and a countersunk (also known as a flat or flush) head. The slotted drive has a single straight slot across the head of the screw, which is designed to be turned using a flathead screwdriver. The countersunk head has an angled shape that allows the screw to sit flush with the surface it is fastened to, making it ideal for applications where a smooth, flush finish is desired.   Material Stainless Steel (A2) Finish Natural Manufacturing Standard DIN 963 Screw Thread Pitch 0.7mm Thread M4 (4mm), Right Hand Thread Countersunk Angle (CA) 90 Degrees (+2/-0) Head Length (H) 2.2mm Maximum Head Diameter (D) 7.5mm Slot Depth (F) 1.1mm Slot Width (A) 1mm   For larger quantities or sizes not listed, please email frank@franksfasteners.co.uk and we will be happy to provide you with a quotation.

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Material High Tensile Steel (10.9) Finish Self Colour Manufacturing Standard ISO 7380 Screw Thread Pitch 0.7mm Thread M4 (4mm), Right Hand Length (L) 40mm Allen Key Size (S) 2.5mm Maximum Head Diameter (DK) 7.6mm Maximum Head Depth (K) 2.2mm   High-strength fasteners are designed for use in applications requiring reliable performance under heavy loads. These screws feature a rounded button head with a hexagonal socket drive, allowing for easy installation and removal with an Allen key.  Made from self-colour high tensile steel with a 10.9 grade, they offer superior strength and durability. Ideal for engineering, machinery, and automotive applications where strong and secure fastening is required. The self-colour finish provides a raw steel look, without additional coatings.

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Material Stainless Steel A2 Finish CB10 Manufacturing Standard DIN 7991 Screw Thread Pitch 0.7mm Thread M4 (4mm), Right Hand Thread Countersunk Angle (CA) 90 Degrees Head Length [Max] (H) 2.48mm Head Diameter [Max] (D) 8.96mm Head Diameter [Min] (D) 7.53mm Hexagon Across Flats / Allen Key Size (J) 2.5mm Hexagon Depth (P) 1.5mm   Upgrade your fastening game with these M4 x 40mm socket countersunk screws, engineered to deliver strength, precision, and a sleek low-profile finish. Manufactured to DIN 7991 standards, these screws sit flush with the surface, making them ideal for applications where both performance and aesthetics matter.Crafted from A2 stainless steel, these screws offer excellent resistance to rust and corrosion, making them suitable for indoor and light outdoor use. The black finish adds an extra layer of protection while giving your project a clean, professional appearance.

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Material Steel 10.9 Finish Zinc Plated Manufacturing Standard DIN 7991 Screw Thread Pitch 0.7mm Thread M4 (4mm), Right Hand Thread Countersunk Angle (CA) 90 Degrees Head Length [Max] (H) 2.48mm Head Diameter [Max] (D) 8.96mm Head Diameter [Min] (D) 7.53mm Hexagon Across Flats / Allen Key Size (J) 2.5mm Hexagon Depth (P) 1.5mm Achieve a clean, flush finish with these M4 x 40mm Socket Countersunk Screws, manufactured to DIN 7991 standards and made from high-tensile Grade 10.9 steel. Finished with zinc plating for added corrosion resistance, these screws are ideal for applications where both strength and a smooth surface are essential. Designed with a hex socket drive, they allow precise tightening and high torque performance without compromising the head.

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Material High Tensile Steel (10.9) Finish Self Colour Manufacturing Standard ISO 7380 Screw Thread Pitch 0.7mm Thread M4 (4mm), Right Hand Length (L) 45mm Allen Key Size (S) 2.5mm Maximum Head Diameter (DK) 7.6mm Maximum Head Depth (K) 2.2mm   High-strength fasteners are designed for use in applications requiring reliable performance under heavy loads. These screws feature a rounded button head with a hexagonal socket drive, allowing for easy installation and removal with an Allen key.  Made from self-colour high tensile steel with a 10.9 grade, they offer superior strength and durability. Ideal for engineering, machinery, and automotive applications where strong and secure fastening is required. The self-colour finish provides a raw steel look, without additional coatings.

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Material Steel Finish Zinc 45H CR+3 Manufacturing Standard DIN 916 Screw Thread Pitch 0.7mm Thread M4 (4mm), Right Hand Thread Socket Head Across Flats / Allen Key Size (J) 2mm (2.02mm-2.08mm) Cup Diameter (D) 1.75mm-2mm Socket Head Depth [Min] (P) 1.5mm  

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Material High Tensile Steel (10.9) Finish Self Colour Manufacturing Standard ISO 7380 Screw Thread Pitch 0.7mm Thread M4 (4mm), Right Hand Length (L) 50mm Allen Key Size (S) 2.5mm Maximum Head Diameter (DK) 7.6mm Maximum Head Depth (K) 2.2mm   High-strength fasteners are designed for use in applications requiring reliable performance under heavy loads. These screws feature a rounded button head with a hexagonal socket drive, allowing for easy installation and removal with an Allen key.  Made from self-colour high tensile steel with a 10.9 grade, they offer superior strength and durability. Ideal for engineering, machinery, and automotive applications where strong and secure fastening is required. The self-colour finish provides a raw steel look, without additional coatings.

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Material Steel 10.9 Finish Zinc Plated Manufacturing Standard DIN 7991 Screw Thread Pitch 0.7mm Thread M4 (4mm), Right Hand Thread Countersunk Angle (CA) 90 Degrees Head Length [Max] (H) 2.48mm Head Diameter [Max] (D) 8.96mm Head Diameter [Min] (D) 7.53mm Hexagon Across Flats / Allen Key Size (J) 2.5mm Hexagon Depth (P) 1.5mm Achieve a clean, flush finish with these M4 x 50mm Socket Countersunk Screws, manufactured to DIN 7991 standards and made from high-tensile Grade 10.9 steel. Finished with zinc plating for added corrosion resistance, these screws are ideal for applications where both strength and a smooth surface are essential. Designed with a hex socket drive, they allow precise tightening and high torque performance without compromising the head.

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Material Stainless Steel (A2) Finish Natural Manufacturing Standard DIN 914 Screw Thread Pitch 0.8mm Thread M5 (5mm), Right Hand Thread Socket Head Across Flats / Allen Key Size (J) 2.5mm Socket Head Depth [Min] (P) 2mm   See a problem with this specification? Let us know.

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Material Stainless Steel (A2) Finish Natural Manufacturing Standard DIN 916 Screw Thread Pitch 0.8mm Thread M5 (5mm), Right Hand Thread Socket Head Across Flats / Allen Key Size (J) 2.5mm (2.52mm-2.58mm) Cup Diameter (D) 2.25mm-2.5mm Socket Head Depth [Min] (P) 2mm   See a problem with this specification? Let us know.

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Material High Tensile Steel (10.9) Finish Self Colour Manufacturing Standard ISO 7380-2 Screw Thread Pitch 0.8mm Thread M5 (5mm), Right Hand Thread For larger quantities or sizes not listed, please email frank@franksfasteners.co.uk and we will be happy to provide you with a quotation.

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