Jinjiang Tagong Hardware Forging Manufacturer Co. LTD,
Proudly specializing in the manufacturing of top-tier nuts since 1985,
We proudly offer a comprehensive selection of standard nuts, including (GB/DIN/ISO/UNI/JIS/GOST/ANSI/ASTM), all crafted to ensure exceptional quality and impeccable compatibility;
In addition, our distinctive collection of special nuts (such as slotted nuts, nylon insert nuts, flange nuts, self-locking nuts, square nuts, cap nuts, and more) is meticulously designed to cater to a variety of needs and applications.
Standard: Experience unmatched precision with our DIN912 Hex Socket Head Cap Screws.
Grade: Choose from an extensive range of grades including 4.8, 6.8, 8.8, 10.9, and 12.9 for unparalleled durability.
Size: Available in versatile sizes from M12 to M36, offering flexibility for various applications.
Surface treatment: Options include Black, Zinc Plated, Zinc (Yellow) Plated, Hot Dip Galvanized (H.D.G), and Dacroment to cater to diverse needs.
Material: Crafted from superior Carbon steel, Alloy steel, and Stainless steel ensuring strength and reliability.
Packing: Conveniently packed at 25kgs per box, 36 boxes per pallet, totaling 900kgs per pallet for easy handling and transport.
Sample: Enjoy the advantage of free samples to evaluate our product quality firsthand.
DIN912 Hex Socket Head Cap Bolts with Yellow Zinc |
(Samples with surface treatment of Plain + oil for optimal test results and performance assurance, delivering excellence in every project.)

Materials and surface treatments can be fully tailored as follows: Tailor the materials and treatments to align perfectly with your specific project requirements, offering bespoke solutions.
Mechnical Property |
Material |
Surface Treatment |
Class 6 / 8/ 10 /12 |
C45
40Cr
35CrMo
42CrMo
|
♦Yellow Zinc
♦Zinc Plated
♦Black Oxide
♦Phosphate
♦Dacromet
♦Geomet |
Packing way:25kg/carton, supporting loads of 1.5 tons to 2.5 tons per pallet; customizable to meet any buyer's specifications with precision.
For further assistance and detailed inquiries, please feel free to contact us. Our dedicated team is ready to provide expert guidance and prompt answers.
DIN6923 |
Thread Size |
c min |
da |
dwmin |
e min |
h |
m min |
mw min |
s |
M18 |
2.4 |
16-17.3 |
34.5 |
31.9 |
26.75-16 |
15.3 |
9 |
24-23.67 |
M20 |
3 |
20-21.6 |
42.8 |
39.9 |
32.95-20 |
18.9 |
11.1 |
30-29.67 |
P.S.: Due to fluctuations in material costs, kindly reach out for an accurate quote before placing an order, ensuring optimal pricing and effective budget management.
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If you have a custom design, please do not hesitate to contact us. We are eager to collaborate on tailored solutions, turning your vision into reality.
WHOWE ARE
With a distinguished legacy spanning over 38 illustrious years, Jinjiang Tagong Hardware Forging Manufacturer Co. Ltd. proudly shines as a beacon in the fastener industry. Celebrated for its unwavering dedication to quality and unmatched expertise, it consistently delivers both standardized and bespoke solutions that perfectly accommodate diverse requirements.
Founded in 1985, our cutting-edge manufacturing facility spans an impressive 60,000 square meters, strategically located in the vibrant heart of Jinjiang City, significantly enhancing our operational prowess.
Our expertise lies in the perfect blend of advanced forging techniques with precise machining. Our adept production management team, paired with an exceptionally talented technical R&D department, excels in crafting bespoke fasteners that precisely align with the unique specifications and visions of our esteemed clients.
Our products are synonymous with superior quality and steadfast reliability, having successfully passed stringent testing and achieved certifications that comply with ISO9001/2015, GB/T19001-2016, and SGS standards, ensuring excellence in every piece.
Driven by an unwavering commitment to quality, we have established ourselves as a trusted supplier on the global stage. Our products are celebrated and widely embraced across continents, including Europe, Australia, North America, South Asia, and beyond, enhancing our global presence.
Development History
Production Workshop
Exhibition