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In the high-torque environment of heavy-duty truck transmissions, the clutch pressure plate bolt is a silent but critical component. At Zhejiang TVC Auto Co., Ltd., we understand that these fasteners must withstand extreme centrifugal forces and thermal expansion. Our bolts are engineered with Grade 10.9 and 12.9 alloy steel to ensure zero fatigue failure during peak operations.
Utilizing high-quality raw materials from reputable suppliers, our OEM/ODM manufacturing process includes rigorous heat treatment. This ensures an optimal balance between hardness and ductility, preventing hydrogen embrittlement and guaranteeing a service life that matches the engine's durability.
With over ten years of continuous effort, our management team—led by renowned experts and senior engineers—upholds the ISO/IATF16949: 2016 quality control system. We take full responsibility for technology, quality management, and product development, ensuring 90% of components are made in-house.
Zhejiang TVC Auto Co., Ltd. was established to become an independent, specialized company focused on manufacturing clutch parts. After more than ten years of continuous effort, the company has grown into a significant player in the industry. Led by renowned experts, researchers, and senior engineers in clutch manufacturing, we take responsibility for technology, quality management, product development, and sales.
Our management team, with expertise in manufacturing, production, logistics, procurement, and equipment management, has built three major product lines (light, medium, and heavy) covering a wide range of products. We are not just a factory; we are a strategic partner for the global automotive supply chain.
Our production facility in Zhejiang represents the pinnacle of modern automotive manufacturing, combining automation with stringent quality audits.
Advanced CNC manufacturing workshop ensures micron-level precision for bolt threading and head geometry.
Imported advanced heat treatment equipment provides uniform tempering for maximum fatigue resistance.
Equipped with capacities ranging from 30T to 2000T for high-volume, high-consistency production.
Four full-function pressure test assembly lines to ensure every product meets global safety standards.
Transitioning toward high-strength titanium alloys and specialized coatings to reduce rotational mass in EV-hybrid transmission systems.
Integration of torque-sensing coatings and digital tracking (RFID) for real-time maintenance monitoring in fleet management.
Implementing carbon-neutral manufacturing processes and 100% recyclable alloy sourcing to meet ESG requirements for global OEMs.
Precision bolts and components for Mercedes-Benz, Volvo, Scania, and MAN heavy-duty trucks.
High-compatibility fasteners for Isuzu, Hino, Mitsubishi Fuso, and Toyota industrial vehicles.
Robust solutions for Kamaz, GAZ, and Chinese brands like Sinotruk, Shacman, and Faw.
We provide detailed product performance information, 3D CAD models, and compatibility verification to meet specific OEM needs.
Our logistics and procurement experts ensure on-time delivery with buffer stock management for long-term contract partners.
Prompt technical support and root-cause analysis for any field issues, ensuring 100% customer satisfaction and reliability.








We primarily use high-strength SCM435 or 40Cr alloy steel, heat-treated to achieve Grade 10.9 or 12.9 properties, ensuring maximum tensile strength and shear resistance.
Yes. We specialize in custom head designs, thread pitches, and surface treatments (such as Geomet, Dacromet, or Zinc-Nickel) to meet specific environmental requirements.
Our quality control includes IATF 16949 certified audits, magnetic particle inspection for cracks, spectral analysis for material composition, and rigorous torque-tension testing.
Standard components are usually in stock. For custom OEM orders, our vertically integrated factory allows for a typical 30-45 day production cycle including validation.
Absolutely. We provide full material certifications, RoHS compliance, and ISO/TS16949 documentation for every shipment.
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Through our commitment to quality and reliability, TVC Auto has earned a solid reputation in the automotive industry and has become a trusted partner worldwide.