1 piece construction with a 1/4 inch hex shank

1/4-20 x 2 1/4 Grade 8 Hex Cap Screw Plain Domestic USA (100)

1/4 x 4 Slotted Hex Hi-Low Thread Concrete Screws Blue Ceramic Coated (500)

6 x 1 5/8 Square Bugle Coarse Drywall Screws Phosphate Coated - Carton (5000)

15/32 x 12 High Speed Aircraft Bit Cobalt

1/2-13 x 4 1/2 Grade 8 Hex Cap Screw Plain Domestic USA (125) M20-2.50 Socket Cap Screws DIN 912 18-8 Stainless Steel (A2) 1 piece construction with a1 2 13 x 4 1 2 Grade 8 Hex Cap Screw Plain Domestic USA (125). 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