Jinjiang Tagong Hardware Forging Manufacturer Co. LTD,
With an illustrious heritage spanning over 35 enriching years, Jinjiang Tagong Hardware Forging Manufacturer Co. Ltd. stands as a beacon of superior craftsmanship in the art of high-quality nut production. Each meticulously crafted component is designed to endure the test of time, offering an unrivaled blend of reliability and strength that sets the industry gold standard. Founded in 1985,
Our comprehensive range of standard nuts exemplifies meticulous engineering, effortlessly meeting and exceeding all industry-standard specifications (GB/DIN/ISO/UNI/JIS/GOST/ANSI/ASTM). Each piece is crafted to deliver outstanding durability and integrates seamlessly into any intended application.
Furthermore, our distinctive variety of specialty nuts (including slotted nuts, nylon insert nuts, flange nuts, self-locking nuts, square nuts, cap nuts, and more) is masterfully crafted to address a diverse spectrum of needs, designed for versatile and innovative applications across a multitude of industries.
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 is crafted to ensure the pinnacle of performance, offering unmatched test results and unwavering reliability, consistently elevating the standards for every project.)

Materials and surface treatments are fully customizable: Tailored specifically to your project requirements, providing personalized solutions that flawlessly align with your distinct needs.
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, with robust support accommodating loads ranging from 1.5 tons to 2.5 tons per pallet. Our packaging solutions are meticulously crafted to fulfill any buyer's precise specifications, ensuring secure and efficient transport.
For comprehensive assistance and detailed inquiries, our dedicated team is poised to deliver expert advice and prompt responses. Do not hesitate to reach out at any time and experience unparalleled support.
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 obtain the most competitive pricing and effectively manage your budget, optimizing your purchasing approach.
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If you have a custom design, please do not hesitate to contact us. We are eager to partner with you on bespoke solutions, transforming your vision into reality with precision and skill, while exceeding expectations.
WHOWE ARE
For an astounding 38 years, Jinjiang Tagong Hardware Forging Manufacturer Co. Ltd. has been a luminary in the fastener industry. Lauded for our unwavering dedication to unparalleled quality and proficiency, we continually provide both stock and custom-engineered fastener solutions. With precision as our hallmark, our products meet diverse needs, establishing benchmarks for extraordinary quality and reliability.
Founded in 1985, our cutting-edge manufacturing facility sprawls across an impressive 60,000 square meters. Situated in the bustling heart of Jinjiang City, this strategic location enhances our operational capabilities and efficiency, driving our achievement in delivering exceptional service to clients worldwide.
Our expertise is evident in the seamless integration of advanced forging techniques and precise machining processes. Our production management team collaborates with our adept technical R&D department, excelling in creating custom fasteners tailored to fulfill the unique requirements and aspirations of our esteemed clients.
Our products are the epitome of superior quality and steadfast reliability, having successfully passed stringent testing protocols. They boast certifications like ISO9001/2015, GB/T19001-2016, and SGS, ensuring excellence in every intricately crafted piece.
Fueled by an unwavering commitment to quality, we have established ourselves as a trusted supplier on the international stage. Our products are acclaimed and extensively utilized across various continents, including Europe, Australia, North America, and South Asia, amplifying our global footprint and respected reputation.
Development History
Production Workshop
Exhibition: Step into the world of cutting-edge innovation and masterful engineering at the Jinjiang Tagong Hardware Forging Manufacturer Co. Ltd. exhibition booth. Prepare to be captivated by the exceptional precision and superior craftsmanship of our products. Dive into the remarkable quality and extraordinary design of our Class 10 DIN 912 Black Fasteners, meticulously crafted to deliver unmatched performance and aesthetic appeal. With our distinctive plain and oil surface finishes, embrace a new standard of excellence in fasteners that promises durability and elegance beyond compare.