Overview
The Mountain Off Road Enterprises JN34R is a 3/4 inch jam nut with a right hand thread, filed under jam nuts in the fabrication category. A jam nut is locked against another nut or threaded part to hold a setting in place. The brand describes universal application, but no vehicle year, make or model is named.
Locking with a jam nut
A jam nut is tightened against a primary nut to hold a threaded adjustment in place. The two nuts share the load, so the lock works best when the jam nut is seated firmly against the mating nut and the threads are fully engaged. Adjust the setting first, then lock it, so the position does not move under vibration.
Thread condition matters as much as torque. Worn, cross-threaded or rusted threads can strip under a jam nut, so clean and inspect them before reuse. Use a thread that matches the component and the nut so the fit stays consistent over time, and check the lock after rough trail sections.
- Clean and inspect threads before reinstalling the nut
- Tighten the jam nut against the primary nut without stripping
- Recheck the setting after the first few trail runs
Specifications
| Brand | Mountain Off Road Enterprises |
|---|---|
| Part number | JN34R |
| UPC | 70000503398 |
| Thread size | 3/4 inch – 16 |
| Thread direction | Right hand |
Vehicle fitment
Confirm the 3/4 inch – 16 right hand thread matches your component before use.
What’s included
Check the nut count against your installation before starting.
