These set screws have a thin edge that digs into hard surfaces for a secure hold. Black oxide resists corrosion in dry environments. Length listed is the overall length. ASME B18.3, ASTM F912. Drive Size .218". Black Oxide Finish Alloy Steel Cup Point Set Screw 7/16"-14 x .375" Length

Black Oxide Finish Alloy Steel Cup Point Set Screw, 7/16"-14 x .375" Length