M4 x 8mm Socket Cap Head Screw / Bolt, A2 (304) Stainless Steel DIN 912

Corrosion resistant cap head screw

Socket cap head screw with a high corrosion resistance, designed with a deep internal socket (hex) recess allowing you to apply the required torque for a secure hold.

Manufactured in A2 stainless steel for a high level of corrosion resistance making them a versatile choice for internal and external applications.

Designed with a distinctive compact cylindrical head which makes them useful when space is tight and installed with an Allen wrench or hex key (Allen key) sees them widely used across many industries.

A versatile corrosion resistant machine screw also known in the trade as Allen key bolts, cap head bolts, or socket screws.

Available in many sizes and lengths, these screws/ bolts are used by DIY enthusiasts and professionals across many diverse sectors including automotive, aerospace, machinery, and construction.

M4 socket cap head screw specification:

• Diameter (TD): M4 – 4mm
• Length (L): 8mm
• Thread length (TL): Fully threaded
• Head width (HW): 7mm max
• Head height (HH): 4mm max
• Head type: Cap head
• Recess type (DT): Internal socket drive (Size 3mm)
• Pitch: 0.7mm
• Material: A2 stainless steel (high level of corrosion resistance)
• Conformity: DIN 912

The M4 socket cap head screw is part of an extensive range of stainless steel cap head screws available from Fusion Fixings with bulk discounts.

Dont forget the hex full nuts?

Dont forget the hex full nuts for use with your socket cap head screws. Take a look at the M4 hex full nuts.

FAQs about A2 stainless steel socket cap head screws

Can I buy just one socket cap head screw?

Yes, you can buy just one socket cap head screw, or as many as you need to get the job done with bulk price discounts

What material is this socket cap head screw made from?

This screw is made from A2 stainless steel, which gives a high corrosion resistance making it ideal for both internal and external environments.

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.

What does DIN 912 mean on a socket cap head screw?

DIN 912 is the industrial standard defining the dimensions, tolerances, and internal hex drive specifications for socket cap head screws, ensuring consistent fit and reliability across applications.

Can A2 stainless steel socket cap screws be used outdoors?

Yes, A2 stainless steel has high corrosion resistance, making this screw suitable for long term outdoor use.

What is the difference between A2 and A4 stainless screws?

A2 stainless steel offers a high corrosion resistance making it ideal for long term external use. The A4 stainless steel offers a higher marine grade corrosion resistance, which also makes it ideal for external use including salt water and marine environments.

Are socket cap head screws strong enough for precision engineering?

Yes, socket cap head screws are widely used in precision engineering applications due to their ability to be tightened with high torque in tight spaces, along with metric sizing which ensures accurate installation.