Gravely M12X1.75 Nylock Nut OEM #21900471
Scratch ’n’ Dent means you’re getting a brand-new working machine with a tiny cosmetic hiccup—nothing that keeps it from doing the job, just enough to save you a little money.
Secure critical fastener connections on your Gravely lawn equipment with this Genuine OEM M12 x 1.75 Nylock Nut (Part #21900471). Precision-manufactured to exact Gravely factory specifications, this metric nylon insert lock nut delivers reliable vibration-resistant thread retention across a wide range of assembly and drivetrain applications on compatible Gravely mowers and outdoor power equipment.
Why Nylock Nuts Matter:
Standard nuts can gradually loosen under the constant vibration and load cycles of lawn mower operation — leading to component shift, misalignment, and potentially dangerous fastener failure. Self-locking nuts, also known as nylock nuts or locknuts, are highly recommended for their ability to resist loosening under vibration, as the nylon insert grips the bolt threads and maintains clamping force even through extended use. Replacing with the correct genuine OEM nylock nut ensures the factory-specified thread engagement and locking torque are maintained.
- Thread Size: M12 (12mm diameter)
- Thread Pitch: 1.75mm
- Type: Nylon Insert Lock Nut (Nylock)
- Standard: Metric
Key Features:
- Genuine Gravely OEM part — not aftermarket or generic
- M12 x 1.75 metric thread for precise, factory-correct engagement
- Nylon insert provides reliable resistance to loosening under load and vibration
- Manufactured to exact Gravely torque and locking specifications
- Hardened construction for long service life in demanding outdoor power equipment applications
- Direct OEM replacement — fits without modification
Compatibility:
This M12 x 1.75 Nylock Nut fits select Gravely lawn mower and outdoor power equipment models. Always verify fitment using your Gravely model and serial number — found on the equipment label near the engine, under the seat, or on the frame — and cross-reference against your unit’s Illustrated Parts List (IPL) to confirm the correct hardware specification for your specific assembly point.
Part Details:
- Part Number: 21900471
- OEM Brand: Gravely
- Part Type: Nylock Nut (Nylon Insert Lock Nut)
- Thread Size: M12 x 1.75
- Condition: New / Genuine OEM
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| Weight | 1 lbs |
|---|---|
| Dimensions | 4 × 4 × 4 in |
| MPN |
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