... Spring Washer,retaining Ring,Wavewasher,Circlips Material:Carbon Steel,nylon ,Stainless Steel,Brass,etc. Model No.brass terminalPlace ... series (plastic fastener), including the graphite gasket of nylon, polyester film gasket, nylon pads, red (black) steel pad. Epoxy plate ... steel, 65MN, phosphor bronze, beryllium copper, stainless steel, nylon and other. The surface treatment is blue zinc, color ...