about us
Ningbo
Fortune Auto Parts Manufacture Co., Ltd.
1.Manufacturer qualified with certificates like ISO9001
2.More than 15 years experience exporting all kinds of wheel weights, Tire Valves, Tire Repair Kits, Wheels
3.Never use inferior material
4.100% tested before shipment
Choose us
Ningbo Fortune Auto Parts Manufacture Co., Ltd. specializes in auto parts manufacturing.
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IATF 16949:2016
FORTUNE -
TUV
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FCC-ID
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ISO 9001:2015
Customer Visit News
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Open-End vs Closed-End Lug Nuts: How 150°C Brake Disc Heat Walks Out Your Preload (And What to Do About It)
At a sustained 150°C brake-disc temperature, our in-house test shows closed-end acorn lug nuts lose about 24.3% of their initial clamp load after 60 minutes, versus 17.5% for open-end bulge lug nuts on the same wheel assembly. The gap comes from geometry: a closed-end acorn traps heat around t...
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Wheel Studs vs Lug Bolts: European Hub-Centric vs Japanese Wheel-Centric Mounting Systems and Aftermarket Conversion Guide
European vehicles use lug bolts threaded into the hub; Japanese vehicles use pressed-in studs with separate lug nuts. Hub-centric mounting (European) centers on the hub bore; lug-centric mounting (Japanese) centers on the nut taper. Conical 60-degree seats dominate aftermarket and Japanese OEM ...
