Metric Socket Head Cap Screw Black-Oxide Alloy Steel Partial Thread M8 * 1.25 * 40mm Grade 12.9 [Allen Key]

This socket head cap screw has a length of 40mm with a threading of M8 * 1.25mm [Partially Threaded]. It is made of Black-Oxide Alloy Steel and thus provides a mild resistance to corrosion in dry environments.

The cup point and the Grade 12.9 increases its strength against the pressure and has a tensile strength and hardness of 170,000 psi | Rockwell C39. Furthermore, it features a shear strenght of 102,000 psi.

ISO Metric Pitch | Coarse threads are an industry standard. These screws are classified as DIN 912 and comply with dimensional standards.