1.Hexagon washer drilling screw for Nylon faucet / Waterproof plastic head fastening screw  /Self-tapping and self-drilling screws Material Grade Carbon Steel:1022A size：5.5*19, 5.5*25, 5.5*32, 5.5*38, 5.5*45, 5.5*50, 5.5*65 ,5.5*75 ,5.5*100,5.5*115,5.5*125 screw diameter：5.5（mm）  screw length:16（mm） Head style: pan                    Trough type:cross                      Function method: drilling tail                       Surface treatment :blue zinc   2.Blue and white zinc flat head drilling screw / Round head washer drilling screw /4.8mm cross dovetail screw Material Grade Carbon Steel:1022A size：4.8*16                   screw diameter：4.8（mm）    screw length:16（mm） Head style: pan              Trough type:cross                               Function method:self-tapping screw                   Surface treatment :blue white zinc 3.Light steel keel fastening screws / Surface blue zinc self-tapping drilling screw / Carbon steel cross flat wall nail Material Grade Carbon Steel:1022A              Size: 5*80 , 5*100               Length:80-100 Head style:pancake                                           Trough type:cross                Surface treatment :blue zinc     4.Countersunk head cross villa drill screw / Light steel keel drilling screw Material Grade Carbon Steel:1022A               Size：4.2*25, 4.2*32, 4.2*38, 4.2*50, 4.8*32, 4.8*38, 4.8*50, 4.8*7             screw length:25（mm） Trough type:cross                   Function method: drilling tail                               Surface treatment :blue zinc     5..Raspett drill screws cross countersunk head flat head embossed drill screws Countersunk head drill screws with clip lug, pressed pattern, round head cross tapping screws   Material Grade Carbon Steel:1022A   Size:4.2*25 ,4.2*32, 4.2*38 ,4.2*45,4.2*55 ,4.2*60,4.8*32, 4.8*38,4.8*60,4.8*75 Trough type:cross                                               Function method: drilling tail   6.High strength galvanized chemical anchor bolt building chemical expansion fastening bolt M12 anchor bolt Size:M12*160   M16*190 Product features: (1) Made of SUS304, it is stronger and not easy to be deformed and broken (2)Mature surface treatment technology, not easy to rust more durable   7. SUS 304 stainless steel expansion bolts for outdoor engineering hardware connection Size: M12*180       M14*120 8 .Full thread screw bolts galvanized carbon steel M12 bolts /light steel villa house tooth bar fasteners SIZE:M16*400  M16*500