5640321002 Lawn Mower Blade Bolt Kit for EGO, 2pcs Lawnmower Bolts & 2pcs Hex Lock Nuts, Replacement Parts for 21in Mowers LM2130 LM2133 LM2130SP LM2135SP LM2150SP LM2156SP

What It Is

This is a replacement blade bolt kit for EGO 21-inch cordless lawn mowers, containing two bolts and two hex lock nuts to secure the mower blade to the spindle. It’s a direct OEM-style fastener set designed for blade swaps or lost/damaged hardware.

Fitment & Compatibility

Check these before buying:

• Deck width: Only for 21-inch EGO mowers (e.g., LM2130, LM2133, LM2130SP, LM2135SP, LM2150SP, LM2156SP). Not for 20-inch or 56V models with different deck sizes.
• OEM vs aftermarket: This is an aftermarket kit, not EGO-branded. It should fit EGO’s factory blade mount—but confirm your model uses the same bolt thread pitch (likely M8 x 1.25) and head shape (flanged, 15mm socket).
• Measure your old bolt: If you still have it, compare length (typically ~25mm) and thread diameter. If lost, check your mower’s manual or EGO’s parts diagram for the exact bolt spec.
• Lock nut type: Uses hex lock nuts with nylon insert—ensure your spindle has clearance for the nut’s height.

Key Things to Know

• Quality: At $4.13 with a 5.0 rating (1 review), it’s a budget option. Verify the steel is hardened (e.g., 8.8 grade) to avoid stripping under vibration.
• Installation difficulty: Easy—remove the old bolt/nut, install new ones, torque to 30-35 ft-lbs (check your manual). Use thread locker if the lock nut feels loose.
• Common gotchas: The nut may be slightly thicker than OEM—test fit before tightening. Over-torquing can snap the bolt; under-torquing can loosen the blade.
• Quantity: Two bolts and two nuts—enough for one blade change. If you have a dual-blade mower, you’ll need two kits.

Should You Buy It

Buy this if you need a cheap, quick replacement for a lost or worn blade bolt on a compatible 21-inch EGO mower and don’t mind an aftermarket part. Skip it if you prefer OEM for exact fit or want a full hardware set (including washers). For $4, it’s a low-risk buy for a single blade swap.