Honda 90105-960-710 Mower Blade Hex Bolts PK2

What It Is

This is a pack of two OEM hex bolts (part #90105-960-710) used to secure the mower blade to the crankshaft on select Honda lawn mowers. Designed for replacement of worn or damaged blade bolts, not for universal fit.

Fitment & Compatibility

Only fits Honda mowers with a specific 6mm hex head and 10mm thread diameter (M10 x 1.25 pitch). Compatible with HRX217, HRR216, HRS216, and HRM215 series decks—check your model’s parts diagram. Not for other brands or self-propelled models with different bolt patterns. Measure your old bolt: length is 28mm, shoulder is 14mm. Aftermarket bolts may vary in hardness; Honda OEM ensures proper torque and thread fit.

Key Things to Know

• Torque to spec: Use 30-35 ft-lbs. Over-tightening strips the aluminum crankshaft; under-tightening risks blade detachment.
• One-time use: Honda recommends replacing these bolts each time you change the blade. Reusing can lead to fatigue failure.
• Anti-seize not needed: Dry install is fine. Lubricants can cause over-torque and thread damage.
• Check for damage: If the bolt head is rounded or threads are burred, replace immediately—never reuse.

Should You Buy It

If you own a compatible Honda mower and need to replace blades or bolts, this OEM pack is the safest choice. Avoid aftermarket bolts—they often lack precise hardness and thread specs. For $6.53, it’s cheap insurance against a flying blade or stripped crankshaft.