Socket Flat Countersunk Head Cap Screw 1/4-20 x 3/4 inch Alloy Steel Black Oxide Hex Socket (Quantity: 100) Coarse Thread, 0.25 inch Diameter Allen Bolt, Length: 0.75 inch, Full Thread

Thread: Coarse / Full Thread / Alloy Steel / Black Oxide, Recommended Hex Socket Allen Key Wrench: 5/32 Inch, Black Oxide is not a protective finish and will rust if exposed to moisture. Stainless Steel material is recommended for environments with moisture