China wholesale ASTM A307 Grade B Heavy Hex Bolt Factory – Hexagon Bolts ISO4014 ISO4017 Gr8.8 Gr10.9 Gr12.9 – Zhongli bolts

● Place of origin: Ningbo, China

● Min quantity request: 500 kgs per size

● Brand Name: ZYL

● Material: 35K 45K,10B21, 40Cr,35CrMo,42CrMo

● Dia: M10-M48

● Surface treatment: Black oxide, Zinc Plated,Hdg.Dacromet

ISO4014

GB5782

GB, the Chinese Pinyin abbreviation of “National Standard”, means the national standard of the People’s Republic of China.

ISO, the English abbreviation of the International Organization for Standardization. Its full name is “International Organization for Standardization” or “International Stadard Organized”.

Black oxide、Zinc Plated、dacromet

Gr8.8、 Gr10.9、Gr12.9

1. Are you a GB and ISO bolt manufacturer?

Yes, we are manufacturer

2. What does your company have?

We mainly produce hex bolts, hex head flange bolts, Hexagon Socket Head Cap Screws, stud bolts, hex nuts, etc.

3. How long is your delivery time for GB and ISO bolts?

30-45 days

4. How long I can get the price? 

We usually quote within 24 hours after we get your inquiry(Except weekend and holidays).

5. What about the warranty?

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.