M3 Socket Countersunk Screws (DIN 7991) - Self Colour High Tensile Steel (10.9)

    Description

    M3 Socket Countersunk Screws (DIN 7991) in self-colour high tensile steel (10.9) are specific types of screws with particular characteristics:

    1. M3: This refers to the metric thread size of the screw. M3 indicates that the diameter of the screw is 3 millimeters.

    2. 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.

    3. 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.

    4. 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.

    5. 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.

    6. 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 0.5mm
    Thread M3 (3mm), Right Hand Thread
    Countersunk Angle (CA) 90 Degrees
    Head Length [Max] (H) 1.86mm
    Head Diameter [Max] (D) 6.72mm
    Head Diameter [Min] (D) 5.54mm
    Hexagon Across Flats / Allen Key Size (J) 2mm
    Hexagon Depth (P) 1.1mm

     

    For larger quantities or sizes not listed, please email frank@franksfasteners.co.uk and we will be happy to provide you with a quotation.

    M3 Socket Countersunk Screws (DIN 7991) - Self Colour High Tensile Steel (10.9)

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        Description

        M3 Socket Countersunk Screws (DIN 7991) in self-colour high tensile steel (10.9) are specific types of screws with particular characteristics:

        1. M3: This refers to the metric thread size of the screw. M3 indicates that the diameter of the screw is 3 millimeters.

        2. 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.

        3. 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.

        4. 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.

        5. 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.

        6. 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 0.5mm
        Thread M3 (3mm), Right Hand Thread
        Countersunk Angle (CA) 90 Degrees
        Head Length [Max] (H) 1.86mm
        Head Diameter [Max] (D) 6.72mm
        Head Diameter [Min] (D) 5.54mm
        Hexagon Across Flats / Allen Key Size (J) 2mm
        Hexagon Depth (P) 1.1mm

         

        For larger quantities or sizes not listed, please email frank@franksfasteners.co.uk and we will be happy to provide you with a quotation.

        Measurements: Every effort has been made to ensure all measurements on our site are accurate and to the relevant standard; they should only be used as a guide. If you see a problem with our specifications please contact us.

        Dimensions: Our stock is sourced from various suppliers, therefore differences may exist between batches such as height, width, visible stamped markings, appearance or actual finish.

        Photos: All photos are for illustration purposes only. Actual product or packaging may vary due to product enhancement.

        Disclaimer: Technical data and specifications were researched and compiled from numerous industry sources for the sole purpose of providing basic information. All material is advisory only and its use by anyone is entirely voluntary. Reliance on it for any purpose by anyone is at the sole risk of that person, and Frank's Fasteners is not responsible for any loss, claim or damages arising therefrom. In developing this information, Frank's Fasteners has made a determined effort to present it accurately.

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