Back-out resistance: once driven home

10 x 3 1/2 Simpson Bugle-Head Wood Decking Screws - 6-Lobe Drive 305 SS - Bulk Pail (1000)

3/4-10 x 3 1/4 Flat Socket Cap Screw Alloy

1-8 x 4 1/2 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (40)

7/8-9 x 3 1/4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (50) 2 1/2-4 A307A Hex Bolts Plain Steel Back-out resistance: once driven home7 8 9 x 3 1 4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (50) . 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