Oversized washer head and increased thread combine for dramatically increased pull-down for warped and twisted logs

1/4 x 4 Flat Split Drive Anchor Mech Galv(100)

5 x 130 Hex Cap Screw 8

9/16-18 x 1 1/4 Socket Set Screw Cup Point Alloy

also referred to as acorn nuts are used to cover exposed bolt ends and add a finished appearance

1/4-28 x 5/8 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (3000) Square Flat Particle Board Screws Zinc Plated Oversized washer head and increased1 4 28 x 5 8 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (3000) . 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