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Your fastener sourcing department in China can help you avoid the middleman to earn the difference. Whatever you want, we can supply it.

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DIN 6921 / ISO 1665 Hex Flange Bolts

Hexagon flange head screws conforming to DIN 6921 and ISO 1665 standards, featuring either smooth or serrated bearing surfaces, represent highly adaptable and dependable fastening solutions. Engineered for optimal clamping performance and uniform pressure distribution, these fasteners significantly reduce the potential for surface damage to assembled materials.

About us

Handan Haosheng Fastener Co, Ltd

Founded in 1996, is a large and professional manufacturer of high-strength fastener. Our factory located in Yongnian County,Handan City, Hebei Province, China,covers an area of 20000 square meters. Now we have advanced cold-forged machine,heat treatment machine and spheroidizing annealing equipment,most of which imported from Taiwan .Output is over 2000 tons every month.

Main product Standards:Germany Standard(DIN), the U.S. Standard (ANSI/ASME), British Standard(BS),China National Standard(GB), and other international standards. And the grade include 8.8 ,10.9 ,12.9.

Explore Our Company

1996

Founded in 1996

180

180 Employees

Technical Personnel

20000

m²

Factory Area

ISO Certifications

Your fastener sourcing department in China can help you avoid the middleman to earn the difference. Whatever you want, we can supply it.

production process

Your fastener sourcing department in China can help you avoid the middleman to earn the difference. Whatever you want, we can supply it.

01. Wire Drawing
02. Spheroidizing Annealing
03. Bolt Forging
04. Bolt Threading
05. Heat Treatment
06. Surface Treatment
07. Testing
08. Package
09. Loading

Exhibition

Your fastener sourcing department in China can help you avoid the middleman to earn the difference. Whatever you want, we can supply it.

See what our customers say

Don't let what we say influence you, take it from our customers

Colorful Hex Head Self Drilling Screws Galvanized Ind...

I ordered 7000 roofing screws and the experience has exceeded my expectations. very good quality with a better sealing area and self drilling tip than what l purchased here locally. Shipping time was as expected and thiscompany is very helpful. nice to deal with. l hope to do more business with this supplier in the future.

Customized SS304 A4 Thread Rod Full Thread Stud B...

happy with the product and will keep doing business with this company

News Blog

Our enthusiastic and professional team is always

News News

Oct. 17, 2025 An Invitation To Visit Handan Haosheng Fastener Co., Ltd. At Fastener Expo Kraków 2025

This significant industry event will be held from October 15th to 16th, 2025, at the EXPO Kraków exhibition center in Poland. You can find us at Booth D107.