What is the main advantage of using RockJock RockNuts over traditional jam nuts?

RockNuts use a tapered collet design to bind the nut, bung, and suspension joint threads together with significant force. This prevents the common issue of jam nuts loosening and causing suspension binding or damage.

What are the dimensions of the tube the weld-in bung is designed for?

The steel weld-in bung is designed to be inserted into a tube with a 1 1/2-inch outer diameter and a 0.188-inch wall thickness.

What is the thread size and direction for the RockNut?

The RockNut in this kit has a 1-inch diameter with a 14-thread-per-inch pitch, and it is a left-hand thread.

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Specifications

Brand: RockJock
Part #: RJ-576201-102
UPC: 810038156750

RockJock RockNut Kit Nut and Bung 1in LH Thread

Name: RockJock RockNut Kit Nut and Bung 1in LH Thread
Brand: RockJock
SKU: rockjock-rockjock-rocknut-kit-nut-and-bung-1in-lh-thread-t14-564534
Price: 134.14 USD
Availability: BackOrder

$134.14

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

RockJock RockNut Kit Nut and Bung 1in LH Thread. Solves suspension binding and loose jam nuts for crawlers and racers.

Key Features

Fits RockJock RockNut Kit Nut and Bung 1in LH Thread.
Includes a 1-inch, 14-thread-per-inch left-hand thread steel nut.
Comes with a steel weld-in bung designed for 1 1/2-inch OD x 0.188-inch wall tubing.
The collet design binds components together with incredible force when tightened.
Helps prevent suspension joints from binding and jam nuts from loosening.
Nut features black zinc plating for corrosion resistance.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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About this part

Product Details

If you're building or modifying suspension arms for rock crawling or racing, you know how frustrating loose jam nuts and binding suspension joints can be. The RockJock RockNut kit is an updated solution to keep your suspension components locked down and moving freely.

This kit includes a 1-inch, 14-thread-per-inch left-hand thread steel nut and a steel weld-in bung. The RockNut itself has a female taper that mates with a male taper on the bung, which is designed to be welded into a 1 1/2-inch outer diameter tube with a 0.188-inch wall. When you tighten the nut onto the suspension joint, it forces the tapered components together, creating a solid lock that also secures the joint threads. This design prevents the common issue of jam nuts backing off and the resulting damage to the suspension arm and joint.

The nut comes with a black zinc plating for corrosion resistance, while the bung is raw steel, ready for welding into your custom control arms. This setup offers a more reliable and robust way to set your suspension geometry compared to traditional jam nuts.