Jinjiang Tagong Hardware Forging Manufacturer Co. LTD,
Specializing in the production of nuts since 1985,
Standard nuts (GB/DIN/ISO/UNI/JIS/GOST/ANSI/ASTM);
Special nuts (slotted nuts, nylon insert nuts, flange nuts, self-locking nuts, square nuts, cap nuts, etc.)
| DIN6924 - M30 - 6H - Class8 - Zinc Plated |
P.S.:White ring can be replaced with Blue ring.
(samples with surface treatment of zinc)
| Mechnical Property |
Material |
Surface Treatment |
| Class 8 |
Steel 45 |
Zinc |
| Thread size |
M30x3.5/ M30x2 |
| Tolerance |
6H |
| Hardness |
26-36HRC |
| Proof load |
516.1N/mm² / 639.6 N/mm² |
Packing way: 25kg/carton, 1.5tons-2.5tons / pallet ; or as requested by buyer.
If you want know more information, pls contact with us.
P.S.: Please contact us to re-quote the exact price before placing an order, due to material price is unstable.
| DIN6924 - M30 |
| Thread Size |
da |
dwmin |
e min |
h |
m min |
mw min |
s |
| M30x 3.5 |
30-32.4 |
42.7 |
50.85 |
32.6-31 |
24.3 |
19.44 |
46-45 |
| M30x 2 |
WHO WE ARE
With over 38 years of manufacturing experience, Tagong is an expert in the manufacturing of standard and special fasteners.
Founded in 1985, we have established an advanced manufacturing factory covering an area of 60,000 square meters in Jinjiang City.
With a production system that combines forging and high-precision machining, a professional production management team, and a senior technical R&D department, we can according to the customer's unique specifications and drawings produce special fasteners.
Our products have passed ISO9001/2015, GB/T19001-2016, and SGS certificate testing and certification.
Our passion for excellence has driven us to become a global supplier. Our products have been exported to Europe, Australia, North America, South Asia, and other places, and are well received by customers.
Development History
Production Workshop
Audited Supplier 
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