3/8"-16 x 4 Flat Head Socket Cap Screws, Alloy Steel, Black Oxide, 25 Pack | Partially Threaded. Internal hex (Allen) drive. ASME B18.3. High strength for machinery, molds, and equipment.
Class 3A Threads / Heat Treated Alloy Steel / Black Oxide Finish
Description
Similar in design to an socket button head cap screw but with an 82 degree countersunk flat head. Used when a flush mounting, high strength screws is required. Commonly used in tools and dies where moving parts pass over fastened area.