5/16-24 x 1 1/2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (100)

5/8 x 9 Hex Lag Screw Zinc Plated

ThruLOK® comes in specific lengths that allow contractors to replace their 1/2" carriage and through-bolts in three primary deck applications:

5/8-18 x 1 1/2 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (255)

3/4-16 x 2 Grade 8 Hex Cap Screw Plain Domestic USA (100)

5/16-24 x 3/4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (1650) 5/16-24 L9 Hex Cap Screws Yellow Zinc Plated - Domestic USA 5/16-24 x 1 1/2 Grade5 16 24 x 3 4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (1650) . 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