In the modern industrial landscape, the term "Custom Heavy Duty Metal Screws" transcends simple hardware. It represents the nexus of metallurgical integrity, precision engineering, and structural longevity. As a leading manufacturer and supplier, Zhejiang Jifeilong Instrument Technology Co., LTD. understands that in sectors like EV charging, aerospace, and high-voltage electrical systems, the failure of a single fastener is not merely a maintenance issue—it is a systemic risk.
Heavy-duty screws are designed to withstand extreme shear forces, vibrational fatigue, and corrosive environments. Unlike standard fasteners, custom heavy-duty solutions are engineered with specific alloy compositions and thread geometries to ensure 100% reliability in mission-critical applications.
Integration of piezoelectric sensors within heavy-duty screws to monitor real-time tension and structural health in bridges and smart grids.
Shifting toward Titanium-Grade 5 and specialized Nickel-Chrome alloys to provide superior strength-to-weight ratios for the new energy sector.
Eliminating Hexavalent Chromium in favor of eco-friendly Zinc-Nickel and Geomet coatings, meeting the strictest global RoHS and REACH standards.
Our transition from Yueqing Feilong Instrument Factory to Zhejiang Jifeilong Instrument Technology Co., LTD. represents a leap into Industry 4.0. We have replaced manual processing with high-precision automated grinding and cold-heading departments.
Data-Driven Production: Every batch of custom screws is tracked via an ERP system, ensuring that tolerances remain within ±0.01mm. This level of precision is vital for the molded case circuit breaker rivets and EV charging pile hardware we supply globally.
Zhejiang Jifeilong Instrument Technology Co., LTD. (formerly Yueqing Feilong Instrument Factory) was established in September 1999 and is located at the Oujiang Port in Wenzhou City. It has complete production, processing, grinding and other departments. We mainly engage in the integrated manufacturing and sales of various electrical switches, shafts, plastic products, and hardware components. Our products are widely used in home appliances, solenoid valves, electronics, automobiles, filtration equipment and other fields.
Operate With Integrity And Achieve multi-Party Win-Win. We believe in building monuments in the instrument technology industry.
Be Realistic And Quality First. Implementing strict quality control from raw material procurement to finished product delivery.
Reputation Supreme, People-Oriented, Quality As The Root. Strive to become a high-quality global supplier of components.
As the world pivots to green energy, our custom copper cylindrical head parts and pins are essential for EV charging piles, ensuring low-resistance electrical conductivity and high durability under outdoor weathering.
Our rivets for miniature circuit breakers (MCB) and molded case circuit breakers (MCCB) are the industry standard for mechanical actuation, ensuring safety during electrical faults.
Supplying water valve nozzle components and high-precision iron cores for solenoid valves that require zero-leakage tolerances and anti-oxidation properties.
We provide full documentation for global enterprises, including IMDS filings for the automotive industry, CoC (Certificate of Conformity), and RoHS compliance reporting.
Pins and shafts for MCCB
Aluminum blind rivets for circuit breakers
Molded case circuit breaker rivets
Custom Rivets for Miniature Circuit Breakers
Q1: What materials are used for heavy-duty metal screws?
A: We utilize a range of high-grade materials including Stainless Steel (304, 316), Carbon Steel (Grade 8.8, 10.9, 12.9), and specialized Copper Alloys for electrical conductivity needs.
Q2: Can you provide custom OEM designs?
A: Yes. Our expert engineering team provides tailored design services and free samples to ensure the hardware meets your exact mechanical specifications.
Q3: How do you ensure the quality of high-precision components?
A: We implement strict QC protocols at every stage—from raw material spectrum analysis to 3D coordinate measuring machine (CMM) testing of finished goods.
Q4: What is the lead time for global shipments?
A: Standard orders are processed within 3 to 5 days. For custom high-volume manufacturing, lead times typically range from 2 to 4 weeks depending on complexity.
Rigorous Quality Control: We implement strict QC protocols at every stage—from raw material procurement to final shipping—strictly adhering to international quality standards.
Rapid Response and Delivery: 24/7 Support with express shipping for standard orders within 3 to 5 days.
Factory-Direct Supply: As a direct manufacturer with fully automated capacity, we offer streamlined supply chain management.
Zhejiang Jifeilong Instrument Technology Co., Ltd.
Tenet: Quality First, Reputation Supreme, People-Oriented.
Strategic Goal: To provide the precision foundations for global industry with excellence and innovation.
Jifeilong
