4 Packs Blades Cutting Edge Plow Grader Blades Bolts & Nuts 5/8"-11 x 2-1/4" for Snow Plow Construction Machinery

What It Is

This is a 4-pack of heavy-duty cutting edge bolts and nuts (5/8"-11 x 2-1/4") designed to secure grader blades, snow plow cutting edges, and similar construction machinery attachments. They are not for lawn mower decks—this product is mis-categorized under “Mower Blades” and is actually for skid steers, tractors, or truck plows.

Fitment & Compatibility

Before buying, verify:

• Thread size: 5/8"-11 (coarse thread) – confirm your equipment uses this, not 1/2" or 3/4".
• Bolt length: 2-1/4" (measured from under the head). Check that the bolt can pass through your blade and mounting plate with enough thread for the nut.
• Bolt head shape: These appear to be hex head or carriage-style. Ensure they match your blade’s counterbore or recess.
• Nut type: Packs include standard hex nuts. If your setup requires lock nuts, flat washers, or serrated flanges, you’ll need to buy separately.
• Not for lawn mowers: Do not use on zero-turn, riding, or push mower blades—they’re too large and will not fit.

Key Things to Know

• Grade/strength: Unspecified. For heavy plow or grader use, confirm the bolts are Grade 5 or higher (look for head markings). If not, they may shear under load.
• Installation: Simple wrench-and-socket job. Apply anti-seize to threads if exposed to salt/water. Torque to manufacturer spec (typically 100-150 ft-lbs for 5/8" Grade 5).
• Common gotcha: Bolts may be too short if your blade is thick (e.g., >1/2") plus a mounting plate. Measure stack-up height first.
• Pack size: 4 bolts + 4 nuts – enough for one cutting edge. For larger plows or graders, you’ll need multiple packs.

Should You Buy It

Buy if you need a budget-friendly, basic replacement bolt set for a snow plow or grader blade that uses 5/8"-11 x 2-1/4" hardware and you don’t require high-strength grade 8 bolts. Skip if you need lock washers, longer bolts, or higher tensile strength for heavy commercial use—go with a known brand like John Deere or Caterpillar hardware instead.