Description
Overview:
These UNF Nylon Insert Locking Nuts (Type P), size 3/8", are zinc‐plated steel hex nuts with a durable nylon collar that provides a prevailing‐torque lock. The nylon insert grips the bolt threads to resist loosening from vibration and shock, making them a dependable choice for machinery and vehicle maintenance. The 3/8" diameter is approximately 9.5 mm, and the fine UNF thread offers strong clamping with precise adjustment. Supplied in a bulk pack of 100 under MPN 903 0623, they are suited to repairs and assembly on construction plant, automotive projects, and garden machinery where a secure, reusable locking solution is required. Type P indicates standard height for general‐purpose use, suitable for right‐hand UNF bolts and studs.
Key Features:
- 3/8" UNF fine thread (approx. 9.5 mm diameter), 24 TPI; equivalent pitch about 1.06 mm
- Nylon insert delivers strong prevailing torque to resist vibration‐induced loosening
- Zinc‐plated finish for improved corrosion resistance in workshop and outdoor conditions
- Type P (standard height) hex form for general fastening tasks across machinery and vehicles
- Consistent thread quality for predictable tightening torque and reliable clamp load
- Easy to fit with standard spanners or sockets; no additional washers or adhesives required
- Suitable for right‐hand UNF bolts and studs used on many UK and US‐spec assemblies
- Bulk pack of 100 for maintenance teams and regular repair work (MPN: 903 0623)
Typical Applications:
Used on engines, frames, guards, brackets, and accessories across construction equipment, agricultural and garden machinery, trailers, and automotive assemblies. Ideal where vibration is common, such as generator sets, compactors, mowers, and chassis components. Suitable for repairs, rebuilds, and routine maintenance where a secure, reusable locking nut is preferred.
Also known as:
Nyloc nuts, nylon insert nuts, nylon lock nuts, self‐locking nuts, prevailing‐torque nuts, insert lock nuts, elastic stop nuts, fine‐thread lock nuts, Type P hex lock nuts.
Product Specifications
| L&S Part No. | 903 0623 |
|---|---|
| Unit of Sale | Pack of 100 |
| Size | 3/8" |
| Key Features | - 3/8" UNF fine thread, 24 TPI, approx. 9.5 mm diameter - Nylon insert resists loosening from vibration and shock - Zinc-plated for corrosion resistance in various conditions - Type P standard height for general-purpose fastening - Bulk pack of 100 for frequent maintenance tasks |
