Established in 2011 and covering an area of over 100 acres, our company is dedicated to the development of high-quality industrial technical mechanical parts and screws. We are an integrated fastener manufacturer engaged in research & development, production, and sales.

We possess world-class advanced fastener production equipment and specialize in manufacturing and selling the "F1" brand. Our product range includes standard parts (German Standard DIN, American Standard ANSI, International Standard ISO, Chinese National Standard GB) and non-standard parts, specifically Grade 12.9 high-strength bolts. We are one of the world's leading manufacturers of Grade 12.9 high-strength screws.

Address: Jintoupu Town, Xiangyin County, Yueyang City, Hunan Province, China (Jinlong New District)

Number of Employees: 200

Main Products:

DIN 912 Hex Socket Head Cap Screws

DIN 933, DIN 931 Hex Bolts

DIN 7991 Hex Socket Countersunk Head Screws

ISO 7380 Hex Socket Button Head Screws

GB 70 Hex Socket Head Cap Screws

GB 5782, GB 5783 Hex Bolts

DIN 5787 Hex Flange Bolts

Production Equipment:

Over 50 Cold Heading Machines (for sizes M3 - M27)

3 Hot Forging Lines (for sizes M24 - M64)

4 Heat Treatment Lines

Production Process:

Raw Material Wire Drawing → Cold Heading → Heat Treatment → Packaging

Quality Department:

Staff: 7 personnel

Features: Dedicated laboratory

Quality Control: Samples from each production batch are retained for testing.