... 2.Fastener screw, 3.hardwere screw, ball screw 4.Screw bolt and nut 5.Standard: JIS, BS, DIN, Product name: aluminum ... Fastener screw, hardwere screw, ball screw, hex screwbolt screw, bolts and nuts, self drilling screw, self tapping screw, machine screw, furniture ... goods are being exported to more than 10 countries and regions. and they're always received favourably.Our manufactures guarantee world ...