What is a jam nut used for?

A jam nut is typically used in conjunction with another nut or component to lock it in place. It's tightened against the primary nut or fitting to prevent it from loosening due to vibration or stress.

What does '14 TPI LHT' mean?

14 TPI means the nut has 14 threads per inch, indicating a coarser thread pitch. LHT stands for Left Hand Thread, meaning the nut tightens when turned counter-clockwise.

Is this nut compatible with standard right-hand threaded bolts?

No, this jam nut is specifically designed for Left Hand Thread applications. It will not properly thread onto a standard right-hand threaded bolt or stud.

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Trusted Since 1957

Est. 1957

Specifications

Brand: Rock Krawler
Part #: RK02985L
UPC: RK02985L

Rock Krawler Universal Jam Nut 7/8 Bore 14 TPI LHT

Name: Rock Krawler Universal Jam Nut 7/8 Bore 14 TPI LHT
Brand: Rock Krawler
SKU: rock-krawler-rock-krawler-universal-jam-nut-7-8-bore-14-tpi-lht-t14-815599
Price: 38.16 USD
Availability: BackOrder

$38.16

On Backorder

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

Key Features

Fits vehicles requiring a 7/8 inch bore and 14 TPI LHT jam nut.
Left Hand Thread (LHT) design tightens counter-clockwise.
Well-built for its intended application.
Universal fitment for various automotive uses.

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About this part

Product Details

This is a universal jam nut from Rock Krawler, designed for applications requiring a 7/8 inch bore and a 14 TPI (threads per inch) Left Hand Thread (LHT). Jam nuts are typically used to secure another nut or component in place, preventing it from loosening due to vibration or stress. This particular nut is well-built for its intended purpose.

The 7/8 inch bore means it will fit over a shaft or bolt of that diameter, while the 14 TPI specification indicates the coarseness of the thread. The Left Hand Thread designation is important; it means the nut tightens in the counter-clockwise direction, which is often used in automotive applications to counteract the loosening effect of rotational forces. This is a straightforward component for securing critical connections.