High Strength Din 931Black Oxide Grade 8.8 m6 m7 m8 m9 m15 m17 m20 Hex Head Bolt Hex Bolts And Nuts

*High strength *Good Anti-Corrosion *Good erosion resistance *Low thermal expansion *Good weldability

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Q1: What is your main products and material supply? 1.1. Main product offerings: Standard screws, bolt, nuts, rivet, washers and Non-standard and customized fasteners and hardware. 1.2. Commonly carbon steel, stainless steel, brass, nickel alloys, aluminum alloy...can customized material according to your requirement Q2: Can I get a sample? A: Yes, Our sample is provided free of charge, but not including courier fees. Q3 : What’s the lead time? A: Normally standard parts 7-15 days and non-standard parts 15-25 days. Q4 : What is your payment term? A: Commonly 30% TT in advance, 70% before shipment. For small order less than $1000, we require 100% in advance to reduce bank fee. Q5:How to do If you can not find the product on our website? A: You can send the product pictures/drawings/samples to us, we will check and back to you immediately. Q6: Are you able to customize the product? A: Sure, we can customize the products in according to your drawings or samples and so on. Product information required: material, hardness, surface treatment, quantity... Q7: How to control your product quality? A: Our QC team carry inspection on raw material, every process during production, and do testings for the finished product. Also we accept 3rd inspection prior to shipment.