Plow Bolts

Plow bolts have a flat, countersunk head and a square neck (or other key) that locks against rotation, sitting flush with the surface so nothing protrudes into the work path. Designed for plow blades, bucket edges, and heavy equipment exposed to abrasion and impact, they're built in high strength grades. We stock plow bolts across grades and finishes.

Why Plow Bolts

On equipment that scrapes, digs, or cuts — snowplow blades, grader edges, bucket teeth — a protruding bolt head would wear away or catch. The plow bolt's flush countersunk head sits flat with the wear surface, while the square neck (or finned/key neck) keeps it from spinning so it can be tightened from the nut side. This makes it the standard for ground-engaging and abrasive-wear applications.

Head and Neck Types

The classic plow bolt has a flat countersunk head with a square neck. Variants include #3 flat-head with a key or fin neck for specific equipment. The head sits flush in a countersunk hole; the neck locks rotation. Match the head and neck to the equipment's holes.

Grades and Finishes

Grade 5, 8, and 9 steel for high strength under impact and load — Grade 8 and 9 are common for severe service. Plain or zinc finish; abrasive applications wear off coatings quickly, so plain high-strength steel is typical.

Selecting the Right Plow Bolt

Match the head and neck style to the equipment's countersunk holes, and the grade to the impact and wear load — Grade 8 or 9 for severe service. Size length for the blade or edge thickness plus the nut, and pair with a matching-grade nut. The flush head must seat fully in the countersink for proper wear performance.

Use the filters to narrow by size, length, grade, and head style.