M8, Socket Screw, Cap Head, High Tensile/ 12.9, Self Colour, ISO 4762, DIN 912.
M8 x 1.25mm Pitch, Standard Coarse Thread, Allen Socket, Cap Head, Screw/ Bolt, High Tensile (12.9), Self-colour, DIN 912.
Fixaball sells all lengths of M8, self-colour, allen socket cap screw/ bolts at the best internet prices with free delivery. (2nd Class Royal Mail). Postage upgrades available at checkout.
Orders placed before 2pm are usually dispatched same day (Mon-Fri).
M8 Cap Head, Socket Screw/ Bolt Lengths Available:
What is a Screw and What is a Bolt?
Socket Cap Screws come as 'sets' and 'bolts'. The, ‘SET’, term is used to describe a fastener that is fully threaded in lengths up to and around 1 inch (from the underside of the head. Over 1 inch in length the fastener will have a, 'shoulder,' or unthreaded area under the head. This space of unthreaded area confirms that the fastener is now a bolt (cap head, bolt in this case). Some people might simply call them Allen or hex socket screw or bolt,' in association with the Allen, Hexagonal Key which is used to tighten and loosen the fastener. So, ‘Socket,’ refers to the hexagon shaped indentation found on the top of the fasteners’ head. A screw is fully threaded and a bolt is partially threaded.
Allen Allen socket, Cap Head Screw/ Bolt A4/ 316 Stainless Steel Applications
An allen socket, cap head screw is best used in engineering applications where you are joining components under heat and or high compression, tension, torque or shearing stress. For example, fastening together automotive or machinery parts. Allen socket, cap head screw/ bolts are designed to be used as a temporary fastener where components need maintenance or should be replaced due to functional wear.
Material: High Tensile (12.9 Grade) - Plain/ Self Colour
Level of Corrosion Resistance
High Tensile Steel
Self-Colour (black with no surface treatment)
Low, without further surface treatment
No exposure to moisture.
Often Greased/ Oiled
High Tensile Steel/ ZINC
Resistant to light moisture, occasionally (not for external use)
Low moisture environments
Metric Coarse and Metric Fine threads are in millimetre (mm) units and were developed to simplify the imperial systems. Europe moved to this system but the Americans choose Imperial as their default. A coarse thread has less helical coils per mm and a fine one has more. Coarse is used for heavier loads and fine is used for lighter loads prone to vibrations. Coarse threads are the, 'normal', most common versions.
Image is for illustrative purposes only.
- Cap screws/ Cap screw/ Capscrews/ Capscrew.
- Allen cap/ Allen cap head/ Allen cap screw/ Allen cap/ Allen bolt, cap head/ Allen bolt, cap screw/ Allan Cap/ Allan cap head/ Allan capscrew.
- Socket screw/ socket screws/ Socket cap screw/ Socket capscrews/ Socket cap, bolt.