Carriage bolts with square nuts: 1) DIN603 ,ANSI,BSW,ISO, AS,JS ETC. 2) Plain,zinc,h.d.g.,black,stainless.Low ... in producing many kinds of fasteners , such as bolts ,nuts, washers, screws, anchors and threaded rods. Our strength: ... of standard fasteners to meet most industrial applicationsHighly competitive prices with the industry Our presence: ElectronicsHome & Industrial AppliancesIndustrial Tools ...