Description
Overview:
These UNF Nyloc Nuts, 'P' Type, zinc plated, Size No.10, are self-locking hex nuts designed to resist loosening under vibration and load. The nylon insert creates prevailing torque on the mating thread for a secure, reliable hold without extra locking washers. The zinc-plated finish helps protect against rust, making them suitable for indoor workshops and outdoor site work. Size No.10 UNF corresponds to 10-32, with a major diameter of about 0.190 in (4.83 mm) and a fine thread pitch of 32 TPI (approximately 0.79 mm). Supplied in a pack of 200, they suit maintenance teams, trades, and DIY users who need consistent, repeatable fastening on machinery, vehicles, garden equipment, and light industrial assemblies. Manufacturer Part Number (MPN): 903 0620.
Key Features:
- UNF No.10 (10-32) fine thread for strong, vibration-resistant joints; approx. 0.190 in (4.83 mm) major diameter and 32 TPI (0.79 mm pitch)
- Nylon insert provides prevailing torque to help prevent loosening from vibration or shock
- Zinc-plated steel finish offers added corrosion resistance for indoor and outdoor use
- Hex form for straightforward tightening with standard spanners or sockets
- 'P' Type pattern for a compact nyloc profile where space or weight is limited
- Pack of 200 for workshop stock, site kits, and repeat maintenance tasks
- Consistent performance on bolts and studs of matching No.10 UNF thread
- Clean threads and start by hand to avoid cross-threading; replace if the nylon ring shows wear
- Suitable for steel fixings; no separate spring or lock washers required in most cases
- MPN: 903 0620
Typical Applications:
Used on guards, brackets, covers, control linkages, and assemblies on machinery, small plant, compressors, mowers, compactors, generators, and trailers. Ideal where joints face vibration or frequent start-stop cycles, such as engine bays, chassis fixings, and rotating equipment housings. Suitable for maintenance, repairs, and new builds requiring a secure UNF No.10 fastening.
Also known as:
Nylon-insert lock nuts, nyloc hex nuts, elastic stop nuts, self-locking nuts, prevailing torque nuts, stop nuts, insert lock nuts, fine-thread lock nuts, UNF lock nuts.
Product Specifications
| L&S Part No. | 903 0620 |
|---|---|
| Unit of Sale | Pack of 200 |
| Size | No.10 |
| Key Features | - UNF No.10 (10-32) fine thread, 0.190 in (4.83 mm) diameter - Nylon insert prevents loosening from vibration or shock - Zinc-plated for corrosion resistance indoors and outdoors - Hex form compatible with standard spanners or sockets - Pack of 200 for consistent, repeatable fastening tasks |
Reviews
Ask a Question
Compatibility
Customers also bought
-
![]()
Key Steel (Imperial) Length: 12" Assorted Pack of 20£83.17 £69.31 -
![]()
Flat Bar, Sizes: 20 x 3-6mm - Assorted Pack of 10£83.68 £69.73
Related Products
-
![]()
Key Steel (Imperial) Length: 12" Assorted Pack of 20£83.17 £69.31 -
![]()
Flat Bar, Sizes: 20 x 3-6mm - Assorted Pack of 10£83.68 £69.73
