Description
A standard bolt that has a diameter of 1/4″ UNF approx: 6.35mm. It is therefore an American fine threaded bolt that has an outer diameter of 6.35mm, which is then called 1/4″ It has 28 threads in one inch = 25.4mm, if you are unsure, you can count the number of threads the bolt has in 25, 4 mm. You measure the length under the skull and it is stated in millimeters. We have a lot of different brands in stock. It differs in color and surface treatment as well as how long the part of the bolt is threaded. It is a normal standard model of all the bolts we stock. We deliver what we have in stock at the moment.