Self Sealing Bolts | Leak-Proof & Weather-Resistant Fasteners

Self-Sealing Bolts | Leak-Proof Fasteners for Critical Fluid & Pressure Systems

Engineered for critical systems, our self-sealing bolts feature integrated seals to automatically prevent leaks of fuels, hydraulic fluids, and gases under extreme pressure. Request specs.

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Advantages of

Reliable Delivery At Both Locations

Dual-base large-scale manufacture The dual bases cover a total production area of 20,000 square meters for efficient mass production and delivery. Full-chain quality control system Completely certified and completely tested, constant quality, compliance, and meeting standards.

Non-Standard Customized Fasteners

Full coverage of all types of products Screws, washers, nuts, precision parts for many industries. Non-standard customized and technological obstacles overcome. With 30 years of experience in customizing screws and other types of hardware parts, we relieve hard problems.

Global Wide-Area Application

Global market layout Exported in more than 40 countries, international cooperation guaranteed to complete delivery. In-depth application of multiple industries To famous enterprises serving 5 or more high precision fields.

Full-Cycle Excellent Service

Full-process service guarantee Full-process service to guarantee a pleasant cooperate experience. Customized value-added service Joint reasearch satisfying demands for the entirety of process.

Primary Applications and Purpose
The primary reasons for using a sealing screw, include:
Fluid Containment: To perform fluid containment of water, oil, fuel, hydraulic fluid, coolant, or gas from leaking from a component.
Contamination Exclusion: To perform contamination exclusion of dust, dirt, moisture, and other contaminants from entering a system via a threaded opening.
Pressure Retention: To perform pressure retention (or vacuum) within a housing or system.
Simplified Assembly: To simplify assembly and decrease the number of components and process steps because the fastener and the seal or gasket are produced as part of one component. This decreases assembly time and the opportunity for assembly error.

FAQ

When was Yu-Huang established?

Yu-Huang is established since 1998.

What are the core product focus for Yu-Huang?

Yu-Huang is focused on the R&D and the customize of non-standard hardware fasteners and for the mass production of precision fasteners.

What certifications and honour has Yu-Huang acquired?

Certifications: Yu-Huang possess ISO9001, ISO14001 and IATF16949 certifications. Honor: it has been titled a High-tech Enterprise.

Our Company

Aug

Yuhuang Quality connects 40 countries' markets

Discover how Yuhuang connects global markets with ISO-certified, zero-emission fastener solutions trusted by Huawei, Xiaomi & aerospace leaders. Learn more.

Aug

Yuhuang Setting a benchmark for non-standard fasteners

Discover how Yuhuang delivers customized, precision non-standard fasteners for 5G, aerospace & more. Trusted R&D-driven solutions with full-service support. Learn more.

Aug

Small fasteners, big customization Yuhuang's strength

Discover how Yuhuang's custom micro fasteners enhance reliability and performance in high-density, lightweight applications. Reduce failure rates & boost efficiency. Learn more.

Aug

Yuhuang leads the way in eco-friendly fasteners

Discover how Yuhuang's sustainable fasteners reduce pollution & meet REACH, ROHS standards. Ideal for EVs & green manufacturing. Learn more.

What Our Clients Are Saying

Mike R.

"We had a hydraulic press that constantly leaked fluid from the access panels. We tried numerous types of sealants and tapes, but the constant vibration dented the tape and the sealant failed inevitably. A colleague of mine suggested trying sealant screws, and their own built-in O-ring was unbelievable. They were easy to install while using a regular wrench, and we haven't had any leaks in over six months. And the time and money saved."

Sarah P.

"We use these to seal outdoor HVAC electrical panels and they perform as they promised, in keeping moisture and dirt out of the panel. Installation is simple and as long as you use the right driver and are careful not to strip the screw if you tighten it too much, you will be successful installing these screws. For the price and sealing performance, these screws are a very good value and very reliable."

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Why Choose Us

Established in 1998, Yu-Huang is a comprehensive industrial-trade company that engages in manufacturing, research and development, sales, and service. Focused on the research and development/customization of non-standard hardware fasteners, it also manufactures precision fasteners to GB/ANSI/DIN/JIS/ISO standards across screw/nut/washer/stamped products.
With a 20,000 square meter footprint, Yu-Huang has dedicated teams and mature supply chains that guarantee efficiency and stability in output. Quality assurance is in place via internal quality checks and certifications , and Yu-Huang boast a "High-tech Enterprise" title.
Yu-Huang products are exported to more than 40 countries and applied to 5G/aerospace/electronics/auto parts and some large companies like Xiaomi, Huawei, and SONY. Our dedicated pre-sales/in-sales/after-sales representative offers OEM&ODM, and 1-stop hardware assembly solutions in adherence to the "quality first, customer satisfaction" motto to create custom

Yuhuang Technology Lechang Co., LTD specializes in non-standard hardware fastener R&D and precision fastener production. ISO-certified, serving 5G, aerospace industries. Trusted by Huawei, Xiaomi. Request a quote today.

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Address:

No, 8, Jinling Fifth Road, Lechang Transfer Industrial park, Lechang City

Call Now:

+8613528527985

Email:

[email protected]