They are also acceptable for use in ACQ pressure-treated lumber

15/32 Heavy Duty Jobber Drill Bit

11/64 Heavy Duty Jobber Drill Bit

12-24 x 3/8 Phillips Flat 82 Undercut Machine Screw Black Zinc Plated (9

increasing follow-up expansion should the hole increase in size as a result of a crack

1/4-28 x 5 1/2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (400) Cap Nuts Nickel Plated They are also acceptable for1 4 28 x 5 1 2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (400) . 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