qiancheng

Bolts with hex head, hex socket head or buttonhead ,dimension range from M6-M20,length from 8mm-160mm. with heat treatment We promise:competitive price high quality quick delivery excellent serviceproduct & delivery detailsproduct namehex boltdiameterM8-M20length8mm-160mmgrade4.8-12.9materialcarbon steelsurface finishingZp,black,black oxidationpackingcarton with plastic bag ...