Socket screw, hex, button head, stainless steel, GR A2-304, STD, 6 x 1 x 8 mm, Fastbolt.

A button head socket cap screw is a type of cap screw with a cylindrical head and hexagonal drive hole. A button head socket cap screw is most commonly driven with an allen wrench or hex key. Stainless steel is a family of iron-based alloys that contain a minimum of approximately 11% chromium, a composition that prevents the iron from rusting, as well as providing heat-resistant properties.