Over-sized threads are wider than gutter spikes

3/8-16 x 7 Simpson Wedge Anchor 316 SS (50)

a loop at one end of which provides a head

10 x 2 1/2 Simpson Bugle-Head Wood Decking Screws - 6-Lobe Drive 316 SS - 1 lbs Pack (82)

1-14 L9 Hex Collar Locknuts Cadmium Yellow & Wax Coated Domestic USA (180)

3/4-16 x 2 Grade 8 Hex Cap Screw Plain Domestic USA (100) 5/8-18 L9 Hex Cap Screws Yellow Zinc Plated - Domestic USA Over-sized threads are wider than3 4 16 x 2 Grade 8 Hex Cap Screw Plain Domestic USA (100). 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 diameters 1 4 to