#41 Heavy Duty Drill Bit - Stubby Length

Coarse thread: 90

7/8-14 x 4 1/2 Hex Cap Screw SS 18-8 (A2)

#43 Heavy Duty Jobber Drill Bit

3/16 x 2 1/4 Slot Hex Hi-Low Thread Concrete Screws Blue Ceramic Coated (2500)

5/8-18 x 2 Grade 8 Hex Cap Screw Plain Domestic USA (175) Drop-In Anchor Setting Tools - Clearance #41 Heavy Duty Drill Bit5 8 18 x 2 Grade 8 Hex Cap Screw Plain Domestic USA (175). Grade 8 Hex Cap Screws are manufactured in the USA 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