#1 Heavy Duty Drill Bit - Stubby Length

Typical hardness on diameters 1/4 to 2 1/2 inches is HRC 33-39

The built-in washer head eliminates the need for an additional washer

10 x 3 1/2 Simpson Flat-Head Deck-Drive™ DWP Wood Screws - 6-Lobe Drive 316 SS - Bulk Carton (1000)

10 x 4 Phillips Bugle Decking Screws Dacrotized - Carton (800)

5/16-24 x 3 Grade 8 Hex Cap Screw Plain Domestic USA (100) Jobber Drill Bits - Fractional #1 Heavy Duty Drill Bit5 16 24 x 3 Grade 8 Hex Cap Screw Plain Domestic USA (100). 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