Description
The nut fits a standard thread that has a diameter of 3/8″ UNF approx: 9.53mm. It is therefore an American fine thread that has an outer diameter of 9.53mm, which is then called 3/8″ It has 24 threads in one inch = 25.4mm, if you are unsure, you can count the number of threads the bolt has in 25.4mm . The nut is 10.5mm high.