self tapping threaded inserts tap lok hole series threaded inserts Xinxiang Bashan Factory

self tapping threaded inserts tap lok hole series threaded inserts Xinxiang Bashan Factory Product Name self tapping threaded inserts tap lok hole series threaded inserts Xinxiang Bashan Factory Material 302/303/307/308,etc Color original/red/black/ Standard MERTRIC/UNC/UNF/ type self tapping self tapping threaded inserts tap lok hole series threaded inserts Xinxiang Bashan Factory: Metric Series Specification and Assembly Data: Specification Nominal Length W Dz d0 d×p L×d d