Allstar Performance Spin Lock Nuts feature a 1/4-20 thread with a built-in serrated flange that locks against the panel or bracket without a separate washer. Each nut is steel with a black oxide finish and takes a 7/16 in wrench. This set of 10 is commonly used as a backer nut with Allstar body bolts and works with any standard 1/4-20 stud or bolt.
FAQ
What thread size do these spin lock nuts use?
These nuts use a 1/4-20 thread and take a 7/16 in wrench.
What does the serrated flange do?
The serrated flange is built into the nut and bites into the panel or bracket as it is tightened, locking the nut in place without a separate washer.
What finish is on the black spin lock nut?
This version is steel with a black oxide finish.
How many nuts are in this package?
This package includes a set of 10 spin lock nuts.
What are these nuts commonly used for?
They are commonly used as a backer nut with Allstar body bolts, and they work with any standard 1/4-20 application.

