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: DIN912 Hex Socket Head Cap Screws
Grade: 4.8, 6.8, 8.8, 10.9, 12.9 - Offering a range of tensile strengths to suit diverse structural needs.
Size: M12--M36 - Versatile sizing options to accommodate various engineering applications.
Surface treatment: Black, zinc plated, zinc (yellow) plated, H.D.G., Dacroment - Each option crafted for superior corrosion resistance and durability.
Material: Carbon steel, alloy steel, stainless steel, etc. - Built for strength and reliability in every environment.
Packing: 25kgs per box, 36 boxes per pallet, 900kgs per pallet - Efficiently packed for easy handling and secure transport.
Sample: Samples are free - Experience the quality before committing to a large order.
DIN912 Hex Socket Head Cap Bolts with Yellow Zinc |
(Samples with surface treatment of Plain + oil for optimal test results and performance assurance - Ensures top-notch quality and reliability.)

Materials and surface treatments can be fully tailored as follows: Tailor the materials and treatments to meet your specific project requirements, ensuring optimal fit and performance.
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 1.5 tons - 2.5 tons per pallet; customizable to meet any buyer's specifications - Adaptable packaging solutions for any logistical needs.
For further assistance and detailed inquiries, please feel free to contact us. Our team is ready to provide expert guidance and answers - We're here to support your every need with professionalism and expertise.
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. This ensures the best pricing and budget management - Stay informed to get the best deal.
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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 - Let's create something unique together, exactly as you envision.
WHOWE ARE
With over 38 years of excellence, Jinjiang Tagong Hardware Forging Manufacturer Co. Ltd. shines brightly in the fastener industry. Known for our steadfast dedication to unsurpassed quality and unparalleled expertise, we consistently deliver a comprehensive range of both standardized and bespoke solutions, meticulously crafted to meet and exceed diverse client requirements.
Established in 1985, our cutting-edge manufacturing facility covers an expansive 60,000 square meters. Located at the vibrant heart of Jinjiang City, this strategic position significantly boosts our operational efficiency and capabilities on multiple fronts.
We excel in harmonizing state-of-the-art forging techniques with precision machining. Our production management team, renowned for their proficiency and innovation, works seamlessly with our highly skilled technical R&D department to produce uniquely customized fasteners that perfectly match our clients' distinct specifications and visionary aspirations.
Our products are synonymous with exceptional quality and steadfast reliability. They have successfully passed extensive testing and received prestigious certifications, including ISO9001/2015, GB/T19001-2016, and SGS standards, ensuring unmatched excellence in every unit we produce.
Fueled by an unwavering dedication to quality, we have cemented our status as a trusted global supplier. Our products enjoy acclaim and widespread adoption across continents, reaching markets in Europe, Australia, North America, South Asia, and beyond, thereby amplifying our presence on the international stage.
Development History
Production Workshop
Exhibition