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Hot Products

Square Head Bolt Din Standard

Eye Bolts DIN 444 - 2017

8.8 Grade High-Strength Hexagon Bolt

DIN 931 Hexagon Head Cap Screws/Bolts Part Thread

EN 14399 (-10 Cup) Torshear Type High Strength Bolt

Zinc-Plated Carbon Steel Concrete Bolts M10 X75mm

DIN 137A Curved Sping Zinc Plated

DIN 137 (A) - 1987 Curved spring washers

Key words:

din 137a curved sping zinc plated

DIN 982 Tall Nylon Insert

Hexagon head bolts partially threaded

DIN 929 - Hexagon weld nuts

8.8 Grade Bare Steel / Zinc Plated

Threaded Bar

Hexagon Socket Screws

Classification：

Washers

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Description

DIN 137A Specifications

All measurements in millimeters (mm)

d1	for screw	d2	s
2.2	M2	4.5	0.3
2.8	M2.5	5.5	0.3
3.2	M3	6	0.4
3.7	M3.5	7	0.4
4.3	M4	8	0.5
5.3	M5	10	0.5
6.4	M6	11	0.5
7.4	M7	12	0.5
8.4	M8	15	0.5
10.5	M10	18	0.8

Equipment

FAQ

Who are we?

Handan Yongnian Hongda fastener Manufacturing Co., Ltd. is located in Yongnian, Handan of fasteners in my country, adjacent to the Beijing-Guangzhou Line, Jingjiu Expressway and Qinghong Expressway intersection, with convenient transportation.

How do we guarantee quality?

our factory successfully passed the ISO9001:2015 international quality system certification. In the future development, the company will continue to adhere to the quality policy of "continuous improvement, striving for excellence and innovation", cooperate wholeheartedly with customers and merchants with strong technical force, equipment force and economic strength, and go hand in hand to create brilliant new achievements.

What can you buy from us?

The company mainly produces bolts, nuts, anchor bolts, screws,stud bolts ,customized special-shaped parts, etc. The products can be produced according to the national international standard (ISO), German standard (DIN), American standard ( ANSI/ASME), British standard (BS) and Japanese standard (JIS).

Why do you want to buy from us instead of other suppliers?

It has more than 20 sets of advanced equipment and an annual output of more than 10,000 tons of high-quality products. The products are sold to more than a dozen countries in the Middle East, Europe, South Korea, and Southeast Asia. "Hongda products, high quality and good price" is the production tenet of our company.

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