Classification of threaded sheaths

1. The product can be divided into metric coarse thread inserts and metric fine thread inserts according to specifications; Unified Coarse Thread Insert (UNC) and Unified Fine Thread Insert (UNF) British Standard Coarse Thread Insert (BSW) and British Standard Fine Thread Insert (BSF) and British Standard Pipe Thread Insert (G);

2. The screw sleeve can be divided into ordinary type and locking type according to its structure; The locking type screw sleeve uses one or more hexagonal locking coils in the middle of the screw sleeve to achieve clamping effect on the bolts installed inside, playing a role in preventing loosening.