Description
Overview:
The M12 Nyloc Nut for Trailer Leaf Springs (MPN 763 003) is a self-locking nut for securing suspension fixings on trailers. It is a high-tensile component to property class 10.9 and uses a nylon insert to resist loosening under vibration and cyclic loading. Sized for an M12 thread (approximately 0.47 in diameter), it is suited to common spring eye, hanger and shackle connections on single- and double-leaf spring assemblies. This nut is widely used on Ifor Williams trailers and is also suitable for certain trailer coupling heads that specify an M12 locking nut. Designed for routine maintenance and replacement during suspension overhauls, it provides reliable clamp force when torqued to the equipment manufacturer's instructions. Use with matching M12 bolts/studs in good condition; replace any nut showing damaged threads or a worn nylon collar to maintain locking performance in service.
Key Features:
- M12 metric thread size for trailer suspension fixings
- Nyloc (nylon insert) self-locking type to resist vibration loosening
- High-tensile construction, property class 10.9
- Suitable for single and double leaf spring installations
- Commonly used on Ifor Williams trailer suspension points
- Compatible with some trailer coupling heads requiring an M12 lock nut
- Supports consistent clamp load when correctly torqued
Typical Applications:
Used on trailer leaf spring suspension to secure spring eye bolts, shackle plates and hanger brackets. Applicable to single- and double-leaf spring set-ups on goods and plant trailers. Also used on some trailer coupling heads where an M12 nyloc is specified. Suitable as a replacement nut during service work on Ifor Williams trailers and other makes using M12 hardware in the suspension or drawbar areas.
Also known as:
M12 Lock Nut; M12 Nylon Insert Nut; Nyloc M12; Leaf Spring Lock Nut; Trailer Suspension Nut; Maypole part number MP10302B
Product Specifications
| L&S Part No. | 763 003 |
|---|---|
| Part Type | Genuine Part |
| Unit of Sale | 1 |
