21/64 Heavy Duty Drill Bit - Stubby Length

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15/16 x 6 Reduced Shank Drill Bit (1/2 Shank)

1 1/4-7 x 3 3/4 Socket Cap Screw Alloy

1 1/8-7 x 13 Socket Cap Screw Alloy

1/2-13 x 3 1/2 Grade 8 Hex Cap Screw Plain Domestic USA (25) Drop-In Anchor Setting Tools 21/64 Heavy Duty Drill Bit1 2 13 x 3 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