Socket Set Screw, Cone Point, 1/4-20 x 5/8", Stainless Steel, 18-8, Hex Socket Drive (Quantity: 100) Coarse Thread, 1/4 inch Grub/Blind/Allen/Headless Screw, Length: 5/8 inch

Designed for Permanent Setting on soft or hardened shafts | Deep penetration gives this style of screw the highest torsional and axial holding power | Can be used as a hangar or pivot. For shafts of Rockwell hardness C15 or more, spot point half its depth | Recommended Hex Socket (Allen Wrench) Size: 1/8 (Inch)