M2 x 3mm Socket Cap Head Screw, Self Colour, Grade 12.9 high tensile steel, DIN 912

M2 socket head cap screw

Cap head screw with a compact cylindrical head and deep internal socket drive for easy installation and application of the required torque.

Manufactured from grade 12.9 high tensile steel for strength and installed with an Allen wrench or hex key (Allen key) sees them widely used.

A self-colour machine screw also known as Allen key bolts, cap head bolts, or socket screws.

Available in a large number of sizes and lengths at Fusion Fixings, these screws are used across many diverse sectors which include automotive, aerospace, machinery, and construction.

M2 socket cap head screw specification:

• Diameter (TD): M2 - 2mm
• Length (L): 3mm
• Thread length (TL): Fully threaded
  
• Head width (HW): 3.8mm max
• Head height (HH): 2mm max
• Head type: Cap Head
• Recess type (DT): Internal hex drive (Size 1.5mm)
• Pitch: 0.40mm
• Material: Grade 12.9 high tensile steel
• Finish: Self-colour
• Conformity: DIN 912

Part of an extensive range of socket cap head screws available from Fusion Fixings.

Corrosion resistant cap had screws

Do you need a socket cap had screw with increased resistance to corrosion? If so, take a look at our M2 x 3mm socket cap head screws in A2 stainless steel, or

For the highest level of corrosion resistance, is our M2 x 3mm socket cap head screws in A4 stainless steel.

FAQs about self-colour cap head socket screws

What does “Grade 12.9” mean on a socket cap head socket screw?

Grade 12.9 refers to a high-tensile steel strength class. It means the screw has an ultimate tensile strength of 1200 MPa (or approximately 175,000 psi) making it one of the strongest metric fasteners available.

Grade 12.9 is typically used in engineering, automotive, machinery and heavy-duty applications where maximum strength is required.

What is a “self-colour” finish?

“Self-colour” means the screw is supplied in its natural steel finish after heat treatment. The screws are sometimes lightly oiled or treated with a black oxide.

Are grade 12.9 socket cap screws corrosion-resistant?

No, these cap head screws are not corrosion resistant and the self-colour or black oxide finish gives limited resistance, making them not suitable for external conditions.

How is the length of the cap head screw measured?

The length of these screws is measured from under the head to the end of the thread, not including the head height.

Can I use grade 12.9 screws in high-temperature or vibrating applications?

Yes, these grade 12.9 screws are suitable for high operating temperatures and perform well in vibration-prone environments such as engines or machinery where they are widely used.

Why choose Fusion Fixings?

A family run business with over 40 years of experience in the construction and fixings industry. Our aim is to bring you a range of quality, reliable, fixings and fasteners at great prices.

With quantities starting from just one to as many as you like, with bulk price offers across many of our products.

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