Jinjiang Tagong Hardware Forging Manufacturer Co. LTD,
With an illustrious heritage spanning over 35 enriching years, Jinjiang Tagong Hardware Forging Manufacturer Co. Ltd. shines as a symbol of superior craftsmanship in the elite art of high-quality nut production. Each meticulously crafted component is designed to not only withstand the test of time but also to deliver unparalleled reliability and strength, setting the gold standard and redefining excellence within the industry. Founded in 1985,
Our comprehensive range of standard nuts is meticulously engineered to not just meet but surpass every industry-standard specification (GB/DIN/ISO/UNI/JIS/GOST/ANSI/ASTM). Each piece offers not only exceptional durability but also seamless integration into any application, ensuring flawless performance and ultimate satisfaction.
Moreover, our exclusive array of specialty nuts (including slotted nuts, nylon insert nuts, flange nuts, self-locking nuts, square nuts, cap nuts, and more) is masterfully created to cater to a diverse spectrum of needs, designed for versatile and cutting-edge applications across a multitude of industries, ensuring that innovation is at the heart of every solution.
Product name |
Carbon Steel Galvanized Gr4.8 Fasteners DIN933 DIN 931 DIN 601 Titanium Hexagon Head Bolt Cap Screw Nuts and hex Bolts |
Standard: |
ANSI/ASME B18.2.1 DIN931 DIN933 DIN960 DIN961 GB1228 GB30 GB5781 GB5782 GB5783 GB5785 GB5786 |
Thread: |
unc,unf,metric thread |
Material: |
Stainless steel (303,304, 316, 201),carbon steel (35#, 45#),
galvanized, aluminum alloy, copper, carbon steel and so on
|
Finish: |
Plain,Zinc Plated(Clear/Blue/Yellow/Black), Black oxide,Nickel,
grey phosphate,nickel,ruspert,H.D.G,etc
|
Packing: |
bulk in cartons (25kg Max.)+wood Pallet or according to customer special demand |
Grade |
4.8, 6.8, 8.8, 10.9, 12.9, A2-70, A4-80,etc |
Leading Time : |
10-30 days or based on order required |
Carbon Steel Galvanized Gr4.8 Fasteners DIN933 DIN 931 DIN 601 Titanium Hexagon Head Bolt Cap Screw Nuts and Hex Bolts |
(Samples available with various surface treatments including Plain + oil. Each sample guarantees superior test results and performance reliability, consistently delivering excellence and trustworthiness for every venture.)

Materials and surface treatments are fully customizable: Tailor these to your specific project needs, offering bespoke solutions that align perfectly with your unique demands, ensuring precision and satisfaction.
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, efficiently supporting loads from 1.5 tons to 2.5 tons per pallet. Our packaging solutions are meticulously customizable to meet any buyer's specific requirements, guaranteeing safe and efficient transportation.
For further assistance and detailed inquiries, our dedicated team is poised to offer expert guidance and rapid responses. Feel free to connect with us at your convenience for unparalleled support and service.
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 contact us for an accurate quote before placing an order. This ensures you secure the most competitive pricing and efficiently manage your budget, optimizing your purchasing strategy.
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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, transforming your vision into reality with unmatched precision and expertise, while consistently exceeding expectations.
WHOWE ARE
For 38 awe-inspiring years, Jinjiang Tagong Hardware Forging Manufacturer Co. Ltd. has been a luminary in the fastener industry. Our illustrious history is marked by an unwavering dedication to superior quality and engineering excellence. We consistently deliver both ready-to-use and custom-designed fastener solutions. Crafted with extraordinary precision, our products meet a diverse spectrum of needs, setting remarkable benchmarks for quality and reliability.
Founded in 1985, our cutting-edge manufacturing facility spans an impressive 60,000 square meters. Located in the dynamic heart of Jinjiang City, this strategic position greatly enhances our operational efficiency, empowering us to serve our global clientele with exceptional proficiency.
Our expertise shines through in the seamless integration of advanced forging techniques and precise machining processes. Our production management team harmonizes with our adept technical R&D department, excelling in creating custom fasteners tailored to the unique demands and visions of our esteemed clients.
Our products are the embodiment of outstanding quality and steadfast reliability, having withstood stringent testing protocols. They are proudly accredited with certifications such as ISO9001/2015, GB/T19001-2016, and SGS, ensuring excellence in every meticulously crafted component.
Propelled by an unrelenting commitment to quality, we have forged a sterling reputation as a trusted supplier on the global stage. Our products are celebrated and widely utilized across a myriad of continents including Europe, Australia, North America, and South Asia, amplifying our international influence and esteemed standing.
Development History
Production Workshop
Exhibition: Step into the dynamic realm of cutting-edge innovation and masterful engineering at the Jinjiang Tagong Hardware Forging Manufacturer Co. Ltd. exhibition booth. Prepare to be mesmerized by the exceptional precision and superior craftsmanship that define our esteemed product range. Immerse yourself in the remarkable quality and extraordinary design of our Class 10 DIN 912 Black Fasteners, each piece meticulously crafted to deliver both unparalleled performance and sophisticated aesthetic appeal. With our distinctive plain and oil surface finishes, embrace a new standard of excellence in fasteners, promising durability and elegance that transcends ordinary expectations. Rediscover the essence of reliability and style with fasteners that are not just functional, but also a testament to engineering brilliance.