Cutting Edge Plow Bolts with Nuts 5/8"-11 x 2-1/4",5/8" Cutting Edge Bolts for Cutting Edges,Snow Plow Blade,Grader Blade,Loader Blade 4 Packs

What It Is

These are 5/8"-11 x 2-1/4" plow bolts (with nuts) designed to fasten cutting edges to snow plow blades, grader blades, loader blades, and heavy-duty mower decks. They are not for standard lawn mower blade attachment—use is for commercial or industrial ground-engagement equipment.

Fitment & Compatibility

• Bolt size: 5/8"-11 thread, 2-1/4" length (measured from under the head to bolt end).
• Head type: Countersunk (flat) head—requires a matching countersunk hole in the cutting edge and a flat surface on the mounting bracket.
• Not for: Residential walk-behind or zero-turn mower blades (those use smaller 3/8" or 1/2" bolts).
• Check before buying:
  • Measure your existing bolt length and thread pitch.
  • Verify the cutting edge thickness + mounting plate thickness ≤ 2-1/4" (bolt must protrude enough for nut engagement).
  • Ensure the bolt head fits flush in the cutting edge countersink.
• OEM vs aftermarket: Generic aftermarket—no specific brand fitment. Works if dimensions match.

Key Things to Know

• Grade strength: Likely Grade 5 (or unmarked). Not ideal for extreme shock loads—consider Grade 8 if used on heavy grader/loader edges.
• Installation: Use anti-seize on threads to prevent galling; torque to manufacturer spec (typically 100–150 ft-lbs for 5/8"-11 Grade 5).
• Common gotcha: Bolts may be slightly under-length if cutting edge is thick (e.g., 1/2" edge + 1/2" plate = 1" needed; 2-1/4" leaves ~1-1/4" thread—fine, but verify).
• Pack quantity: Only 4 bolts—enough for one small blade section, not a full plow (usually needs 8+).

Should You Buy It

Buy if you need a small quantity of 5/8"-11 x 2-1/4" plow bolts for a light-duty snow plow or grader blade edge and don’t require high-grade hardware. Skip if you need a full set for a commercial plow (buy a larger pack) or require Grade 8 strength for heavy loading.