M6 Socket Countersunk Screws (DIN 7991) - Self Colour High Tensile Steel (10.9)

Length (L): 10mm (Fully Threaded)
Pack Quantity: Pack of 1
Sale price£0.62
In stock (4 units), ready to be shipped


M6 Socket Countersunk Screws (DIN 7991) in self-colour high tensile steel (10.9) are specific types of screws with particular characteristics:

  1. M6: This refers to the metric thread size of the screw. M6 indicates that the diameter of the screw is 6 millimetres.

  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 1mm
Thread M6 (6mm), Right Hand Thread
Countersunk Angle (CA) 90 Degrees
Head Length [Max] (H) 3.72mm
Head Diameter [Max] (D) 13.44mm
Head Diameter [Min] (D) 11.34mm
Hexagon Across Flats / Allen Key Size (J) 4mm
Hexagon Depth (P) 2.2mm


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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