Manufactured from heat treated alloy steel

5/8-11 x 4 Flat Socket Cap Screw Alloy

1/4-20 x 3 1/2 Grade 8 Hex Cap Screw Plain Domestic USA (550)

one-piece screw anchor

9/16-12 x 1 1/4 Socket Cap Screw Alloy

7/16-14 x 3/4 Grade 5 Hex Cap Screw Plain Domestic USA (100) 3/8-16 Phillips Flat Machine Screws 18-8 Stainless Steel Manufactured from heat treated alloy7 16 14 x 3 4 Grade 5 Hex Cap Screw Plain Domestic USA (100). Grade 5 Hex Cap Screws are manufactured in the USA from medium carbon steel. Our Grade 5 material meets or exceeds SAE J429 Grade 5 specifications. All products are manufactured with rolled threads. Typical hardness on diameters 1 4 to 1 inch is HRC 25 34. On diameters over 1 inch to 1 1 2 hardness will range from HRC 19 30. Tensile strength for diameters 1 4 to 1 inch is a minimum of