... washers Features: 1) Plain,zinc,hot galv.black,stainless. 2) Can be made of low carbon steel and high tensil spring washer ... tensile,stailessstandardDIN,ANSI,BSW,AS,JS,ISO,ETC.stype Flat washer and spring washerfinish bright,zinc plated,hot-dip galvanized,mechanical ... in producing many kinds of fasteners , such as bolts ,nuts, washers, screws, anchors and threaded rods. Our strength: Can make custom ...