The self-undercutting

1 1/4-12 x 4 Socket Cap Screw Alloy

3/16 x 12 ITM SDS Plus eVolution™ Hammer Drill Bit

Web construction is heavier than general purpose construction making it particularly suitable for cotter pin hole drilling and cross hole drilling in head of bolts

29/64 Heavy Duty Drill Bit - Stubby Length

3/4-16 x 3 3/4 Grade 8 Hex Cap Screw Yellow Zinc Plated Nylon Insert Locknuts Zinc Plated The self-undercutting3 4 16 x 3 3 4 Grade 8 Hex Cap Screw Yellow Zinc Plated . Grade 8 Hex Cap Screws are manufactured from medium carbon alloy steel. In diameters 1 4 to 1 1 2 inches our Grade 8 material meets or exceeds SAE J429 Grade 8 specifications. Diameters over 1 1 2 inches meet or exceed ASTM A354 Grade BD. All material is manufactured with rolled threads. Yellow zinc plated bolting will meet or exceed ASTM F1941. Typical hardness on diameters 1 4 to 2 1 2 inches