1 3/8-12 x 4 1/2 Socket Cap Screw Alloy

#2 x 6 High Speed Aircraft Bit Cobalt

5/8-11 x 2 3/4 Grade 8 Hex Cap Screw Plain Domestic USA (125)

These are premium quality

1 3/8 x 6 Reduced Shank Drill Bit Cobalt (1/2 Shank)

1 1/8-7 x 2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (40) Jobber Drill Bits - Cobalt 1 3/8-12 x 4 1/21 1 8 7 x 2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (40) . 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