YARBO Cutting Blades and Bolts (40Pcs) for Lawn Mower

What It Is

This is a 40-piece bulk pack of YARBO replacement cutting blades and bolts for lawn mowers, designed for users who need frequent blade swaps or maintain multiple machines. It’s a high-volume, low-cost option for standard residential mowers.

Fitment & Compatibility

Check these before buying:

• Deck size: Each blade is 18 inches long (tip to tip) and fits mower decks 18–20 inches wide. Measure your existing blade length—if it’s not 18", these won’t work.
• Mounting pattern: Uses a center hole with a 5-point star pattern (common for many Craftsman, MTD, and Troy-Bilt models). Verify your spindle’s bolt pattern matches.
• Brand/model fit: Not OEM-specific. Works on most universal-fit mowers with 18" blades, but avoid zero-turn or commercial decks (different hole patterns and thicknesses).
• Bolt included: 40 bolts (likely 5/16-24 thread, 1" length) with locking washers. Confirm bolt thread pitch matches your spindle—common on many push mowers, but not all.

Key Things to Know

• Quality: Basic steel blades, likely not hardened or coated. Expect shorter lifespan than OEM blades (dull faster on tough grass or debris). Fine for light-duty mowing.
• Installation: Easy—use a socket wrench. Tighten bolts to 40–50 ft-lbs (check your mower manual). Over-tightening can strip spindle threads.
• Gotchas: Bulk packs often have inconsistent sharpness out of the box. Inspect each blade for burrs. The included bolts may be lower-grade steel—consider reusing OEM bolts if they’re in good shape.
• Balance: After installation, check blade balance with a balancer. Unbalanced blades vibrate, damage spindles, and cause uneven cuts.

Should You Buy It

Buy this if you have multiple standard residential mowers (18–20" decks) and need a cheap, high-volume blade supply for frequent swaps. Skip it if you need premium, long-lasting blades for tough conditions, commercial use, or a specific OEM fit. For $39, it’s a budget-friendly stopgap, not a long-term upgrade.