5/8"‑11 × 4" Grade 8 Dome Head Plow Bolt No. 3 – 150,000 PSI, Plain Finish

The 5/8"‑11 × 4" Grade 8 dome head plow bolt (No. 3) is engineered for extreme‑duty, high‑wear applications where maximum strength and a flush mounting profile are critical. Manufactured to Grade 8 specifications with a minimum tensile strength of 150,000 PSI, this bolt features a smooth dome head to minimize abrasion and surface interference, along with a square neck that prevents rotation during installation. Supplied with a plain (uncoated) finish, it is ideal for plow blades, grader edges, snow removal equipment, and heavy earth‑moving machinery where exceptional shear resistance, durability, and long service life are required.