#16 Heavy Duty Drill Bit - Stubby Length

7/8-14 x 5 1/2 Grade 5 Hex Cap Screw Zinc Plated

1-8 x 18 Socket Cap Screw Alloy

#13 Heavy Duty Jobber Drill Bit

5/8-11 x 5 1/2 Grade 8 Hex Cap Screw Plain Domestic USA (25) 7/16-20 Hex Cap Screws 18-8 Stainless Steel #16 Heavy Duty Drill Bit5 8 11 x 5 1 2 Grade 8 Hex Cap Screw Plain Domestic USA (25). 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