The indented or crimped portion on the skirt at the top of the cap used for holding the liner in the cap The knurl is also used as a grip for removing the cap The knurl provides a non-skid surface during the threading operation
The process of marking the surface of a part by rolling depressions in the surface, usually for better hand grip
- The indented or crimped portion on the skirt at the top of the cap used for holding the liner in the cap The knurl is also used as a grip for removing the cap The knurl provides a non-skid surface during the threading operation