Do not use these steps to identify Internal threads should not be because it is difficult to verify the pitch gauge’s fit on them. One way around this is to find the mating external thread and ...

Manufacturers inspect threads according to unified or ISO standards or using System 21, System 22, and System 23. Several features must be checked to make sure that threads meet specifications. Gaging ...

Motorcycle Tire Metal Valve Caps Check this out — real metal valve caps! Just like they used to make in the days of the Meriden Triumphs! These are nice replacements for those cheesy plastic ones they ...