Allstar Performance aluminum jam nut, 1/2-20 Left Hand thread, sold in a pack of 4. Used to lock rod ends or threaded components tightly against suspension tubing or rack-and-pinion steering shafts, preventing the adjustment from loosening under vibration.
- Thread Size: 1/2-20
- Thread Direction: Left Hand
- Wrench Size: 3/4 in
- Material: Aluminum
- Finish: Natural
- Quantity: 4 jam nuts per pack
- Part Number: ALL18279
Allstar Performance Spec Sheet (PDF)
Compatibility
Fits any rod end, turnbuckle, or threaded suspension component using a 1/2-20 Left Hand thread. Left-hand and right-hand threads are not interchangeable, so confirm thread direction before ordering.
FAQ
What thread size and direction does this jam nut use?
ALL18279 uses a 1/2-20 Left Hand thread.
What wrench size is needed to install this jam nut?
A 3/4 in wrench fits ALL18279.
What material and finish is this jam nut made from?
This jam nut is machined from aluminum with a natural finish.
How many jam nuts are included in this pack?
ALL18279 includes 4 aluminum jam nuts per pack.
What is a jam nut used for?
A jam nut threads onto a rod end or threaded shaft and is tightened against it to lock an adjustment in place and prevent it from loosening under vibration.

