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Hexagon Bolts ISO4014/GB5782 Gr8.8/10.9/12.9 black

Short Description:

Ningbo Zhongli Fastener Manufacturing Co., Ltd. is a fastener manufacturing enterprise integrating production and sales.  We insist on professional service, high quality and excellent price as our pursuit and commitment to customers.

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This video is showing Hex bolts DIN931 half thread Gr10.9 carefully at our workshop

External hexagon bolts details

● Place of origin: Ningbo, China

● Standard: ISO4014/GB5782

● Place of origin: Grade 8.8 10.9 12.9

● 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

External hexagon bolts standard and dimensions


ISO4014/GB5782 Standard


Factory's photos

The difference between GB and ISO

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".

What are GB and ISO bolts coated with?

Black oxide、Zinc Plated、dacromet

What are the grade properties of GB and ISO bolts?

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.

Location of our factory on google map

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