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

Less breakage

1 1/2-6 L9 Hex Nut Alloy Cadmium Yellow and Wax Coated Domestic USA (5)

7/16-14 x 3 1/2 Grade 8 Hex Cap Screw Plain Domestic USA (25)

3/16 x 3 Powers Round Toggle Bolt Zinc Plated (50)

5/8-18 x 5 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (75) 3/8-24 Grade 8 Hex Cap Screws Yellow Zinc Plated - Domestic USA ThruLOK® comes in specific lengths5 8 18 x 5 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (75) . 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