China Sealing Screw Stainless Steel Waterproof Self Sealing Machine Screw For Automotive Battery Pack New Energy Equipment Fastener Suppliers, Factory
Our Sealing Screw adopts integrated waterproof sealing design, anti leakage and anti rust stainless steel material, ideal fastener for new energy vehicle battery pack robot equipment industrial assembly, stable sealing performance with tight tolerance.
As professional industrial fastener supplier, we supply high-performance Sealing Screw specially developed for new energy, automobile and automation machinery industries. The core advantage of our Sealing Screw is integrated rubber sealing ring structure, which can realize zero gap fastening to block water, dust and oil penetration thoroughly. Different from ordinary machine screws, standard Sealing Screw combines thread locking and sealing function in one component, greatly reducing assembly steps and improving production efficiency for B 端 manufacturers.
Core Features & Competitive Advantages
Premium Waterproof Sealing Performance
Our Sealing Screw is equipped with high temperature resistant fluorine rubber sealing gasket, after 72 hours water immersion test without leakage.
Anti Corrosion Stainless Steel Base Material
All standard Sealing Screw bodies adopt 304/316 stainless steel raw material.
Ultra Precise Machining Tolerance
The thread of each Sealing Screw is CNC precision machined with ±0.02mm tolerance.
Integrated Molding Design
One piece forming structure of our Sealing Screw will not have sealing ring falling off during high-frequency disassembly.
Customizable Specification Support
We provide customized length, diameter, head type and sealing material of Sealing Screw.
Complete Product Specifications
Item
Detailed Parameter
Product Name
Sealing Screw
Main Material
304 Stainless Steel, 316 Stainless Steel
Sealing Gasket Material
Fluorine Rubber, NBR Rubber
Size Range
M2-M16, Custom Length Available
Machining Tolerance
±0.02mm
Waterproof Grade
IP67
Operating Temperature
-40℃ ~ 120℃
Surface Treatment
Natural Polishing, Passivation Anti-rust
Standard Certificate
IATF16949 Automotive Grade Standard
Wide Application Scenarios & Customer Cases
New Energy Vehicle Battery Pack Assembly: Mass customized Sealing Screw are widely used in power battery shell fastening.
Industrial Automation Control Cabinet: Waterproof Sealing Screw is used for cabinet cover assembly.
Automotive Interior & White Body Auxiliary Fastening: Automotive grade Sealing Screw meets vehicle vibration resistance standard.
Pain Points & Targeted Solutions
Many industrial manufacturers face these troubles when using ordinary screws: shell liquid leakage, short service life of split sealing parts, inaccurate thread size leading to assembly difficulty. Our Sealing Screw provides one-stop solution:
Leakage Problem→ Integrated rubber ring Sealing Screw, IP67 waterproof grade.
Frequent Replacement Cost→ Stainless steel anti-corrosion Sealing Screw, extend service cycle by 3 times.
Low Assembly Efficiency→ Dual function locking & sealing Sealing Screw, cut assembly accessories by half.
All batches of our Sealing Screw pass strict laboratory sealing and tensile testing before delivery. Our factory owns IATF16949 automotive industry certification.
Long term cooperation manufacturers can get stable bulk supply of Sealing Screw, stable unit price and fast delivery cycle.
Factory Strength & Production Capacity
We are a professional fastener manufacturer with 12 years production experience, equipped with full automatic CNC production lines for Sealing Screw. Monthly output of standard Sealing Screw reaches 8 million pieces.
Purchase Support & Contact Information
Sample Service: Free small quantity sample of Sealing Screw for customer performance test
Customization Service: Custom size, sealing material, surface process of Sealing Screw
After-sales Support: Professional engineering team to solve installation and sealing problems
Logistics Support: Multiple shipping channels for bulk Sealing Screw export
Inquiry Form Guidance
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If you need quotation, customized drawing or technical parameter sheet of Sealing Screw, please fill in the inquiry form at the bottom of this page.
Send us your drawing or sample. We will quote within 24 hours. OEM and custom orders welcome.
Frequently Asked Questions (FAQ)
Q1 What makes sealing screws different from standard machine screws?
Unlike conventional screws that only fasten components together, sealing screws feature an integrated rubber sealing ring (fluorine rubber or NBR). This allows them to achieve complete zero-gap fastening, effectively blocking water, dust, and oil penetration without requiring separate O-rings or sealants.
Q2 What base materials and sealing ring options are available?
The screw bodies are manufactured from premium 304 or 316 stainless steel for superior anti-corrosion protection. The integrated sealing gaskets are available in high-performance Fluorine Rubber or NBR Rubber depending on your temperature and chemical exposure requirements.
Q3 What waterproof rating and operating temperatures can these screws withstand?
Our sealing screws are certified to an IP67 waterproof rating, passing 72-hour continuous water immersion tests without leakage. They operate reliably within a temperature range of -40℃ to 120℃.
Q4 Can you manufacture non-standard or custom-sized sealing screws?
Yes. While our standard sizing ranges from M2 to M16, we support custom specifications including special lengths, thread diameters, head types (such as pan, flat, or socket head), and specialized sealing materials with machining tolerances down to ±0.02mm.
Q5 What quality management certifications does your manufacturing facility hold?
Our factory operates strictly under the IATF16949 automotive grade quality management system. Every batch of sealing screws undergoes rigorous laboratory tensile and sealing verification before dispatch.
Q6 Are free product samples available for verification before bulk orders?
Yes, we provide free small-quantity samples of our sealing screws for testing and fit evaluation. Simply share your application requirements or drawings with us to request samples.
