Performance：Good corrosion resistance, good formability, etc
Surface：Bright surface, fog surface, oxalic acid coating
Application：Head type, rod type, rivet, row nail, pin, semicircular head, etc
Steel material：302HQ、XM-7、304HC、304HC3、316LCU、410、430
Thread warp(mm)：1.0-12.0
Tensile strength(N/mm)：550-800（MPA）
Warp tolerance(mm)：±0.02
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