5/8"‑11 × 3‑1/2" Grade 8 Dome Head Plow Bolt No. 3 – 150,000 PSI, Plain Finish

The 5/8"‑11 × 3‑1/2" Grade 8 dome head plow bolt (No. 3) is designed for extreme‑duty, high‑wear applications where maximum strength and a flush mounting profile are essential. Manufactured to Grade 8 specifications with a minimum tensile strength of 150,000 PSI, this fastener features a smooth dome head to reduce surface abrasion and a square neck that prevents rotation during installation. Supplied with a plain (uncoated) finish, this plow bolt is commonly used in plow blades, grader edges, snow removal equipment, and heavy earth‑moving machinery where high shear resistance, durability, and long service life are critical.