Flat Head Socket Cap Screw (FHCS), Premium, Black Oxide

Our Premium Flat Head Socket Cap Screws are made of a high-grade alloy steel. They are hardened by quenching in oil from the hardening temperature and tempered to a specific hardness range of Rockwell C38-44 at the surface. The Flat Head Socket Cap Screws shown in this catalog have a head angle of 82º. 100º Angle Head available upon request. Other sizes and further technical information is available upon request also. Please call 888-752-7272 for more information.