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

1 piece construction with a 1/4 inch hex shank

2-56 x 3/16 Phillips Flat 82 Undercut Machine Screw Black Zinc Plated (10

1 1/4 x 18 Ship Auger Wood Bit

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) 1/4 x 4 Slotted Hex1 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