HEX NUT DIN934: size:M3 to M56 Standard:GB,DIN,ANSI,JIS Finish:plain,black, yellow zinc, white zinc, white blue zinc Grade:4.8 5.8 6.8 8.8 10.9 12.9 Material:carbon steel, brass,stainless steel, spring steel, alloy steel Packing:Paper carton
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