Origin |
China |
Provide all kinds of Nuts (hex nut,heavy nut,square nut,wing nut,weld nut,castle nut,slotted nut,coupling nut,hex jam nut,nylon insert nut). Standard: ISO, DIN, ANSI, BS, JIS, Others Material: Carbon steel, Alloy steel, Stainless steel Coating: Antirust oil, Zinc Plated, Yellow Zinc, HDG, Phosphated Quality control: ISO9001:2000 AQL sampling report and 3.1B certificate available Mechanical properties and chemical properties test to ensure the quality. The third authoritative test institute inspection provided.
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