صفحه مهره، مهر ه لنگری،نام مهره مخصوصی که در صنعت هواپیمایی مورد استفاده قرار میگیرد
Description
A nut riveted or welded to a structure in such a way that a screw or bolt can be screwed into it. an anchor nut does not need to be held with a wrench to keep it from turning.
