DIN933 grade 8.8 black oxide coating outer hexagon bolt

The company's quality management system: ISO9001:2005 certification, ROHS certification, SGS certification,CE certification, etc. 

Quality Control:
The quality control is strictly performed from buying raw materials in warehouse to different machining procession and to final packing.We have Magnetic Powder Detector, Material Testing Machine, Metallographic Microscope, such testing instruments, guarantee product high quality and beautiful appearance.

First, we have our own High-precision Digital Machining center for mould making in special Mould Workshop, excellent mould make product beautiful appearance and its size accurately.

The second, we adopt blasting procession, removing Oxidation surface, make the surface to be bright and clean and uniform and beautiful.

1. Q: Could you send me your catalogue and price list?

A: As we have more than thousands of products, it is really too hard to send all of catalogue and price list for you. Please inform us the style you interested, we can offer the pricelist for your reference.

2. Q: How about the quality of your product?

A: 100% inspection during production. Our products are certified to ISO9001, TS16949 international quality standards.

3. Q: What material of the product can you supply?

A: Carbon Steel, Alloy Steel, Stainless Steel, Brass, Copper or according to your requirement.

4. Q: What's the delivery time?

A: For products in stock, we can ship it within 7 days after receiving your payment. For custom order, within 24 tons, production time is 20-35 days after confirmed every details.

5. Q: What's your packing?

A: Our Normal packing is bulking in Cartons, 25kgs/carton, 36cartons/ pallet. We also can pack products according to your requirement.

6. Q: What about the warranty?

A: We are very confident in our products, and we pack them very well to make sure the goods in well protection.

To avoid any subsequent trouble regarding quality issue, we suggest you check the goods once you receive them. If there is any transport damaged or quality issue, don't forget take the detail pictures and contact us as soon as possible, we will properly handle it to make sure your loss to reduce to the smallest.