Description
1 4 20 x 1 2 Socket Head Cap Screws Thermal Black Oxide Alloy Steel Domestic USA Package (100) Metric Nylon Insert Locknuts Zinc Plated The interlock between the tabs The interlock between the tabs of the take up washer and the threads under the head of the SDWF prevent the screw from sliding back under load The 3 4 x 8 Powers Wedge Bit™ SDS Shank is an ideal choice for concrete drilling