*** IN STOCK SHIPS TODAY *** 3/8-24 12 point steel nut. Time to time a racer will have 3/8" and 7/16" rocker adjusters on their engine making for two different sized valve adjusting wrench's. Fear not friends RBS carries these 3/8" thread 1/2" wrench twelve point nuts so one size wrench can be used when running the valves.
These can be used virtually anywhere on your race car that uses a 3/8-24 thread such as the headers or the clutch can but the 7/16" wrench is more popular in those applications. Finish is black oxide. Nut uses 1/2" wrench.