M3 x 0.5 x 25mm Socket Cap Screw - Steel - Black Oxide - DIN 125B - Class 12.9 - Pkg of 100

Cap Screws are designed to go through a hole or nut that is pre-tapped to form a mating thread for that screw. Socket head screws for use with allen key.

Socket Head Cap screws are ideal for precision work with close tolerances and applications needing a well tooled appearance. Socket Head Cap screws supply greater tensile strength than equivalent Hex Head Caps screws, while requiring less surface area to counterbore.

Low Socket Heads are high strength, precision fasteners that are designed to be used in applications where head height clearance is a problem. Because of their reduced head heigth and smaller socket size, they normally cannot be preloaded as high as a standard socket head cap screw.

Flat Head Socket Cap Screws are used for flush mounting of sections, usually where one part slides over another part or one part is mounted on another. Flat head screws are limited by configuration in their tensile strength capability.