Best 10 Screw Nut Supplier in China 2026

Oct 02, 2026

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The global demand for industrial fasteners, structural nuts, and high-precision fluid hardware continues to reach unprecedented levels in 2026. Driven by rapid technological evolution across automotive electrification, heavy machinery automation, renewable energy installations, and hydraulic system infrastructure, global B2B procurement networks heavily rely on specialized suppliers capable of delivering high-volume, defect-free fastening solutions.

China remains the center of global industrial fastener supply chains, backed by expansive manufacturing clusters across Zhejiang, Jiangsu, Hebei, Guangdong, and Shandong provinces. Modern manufacturing capabilities in these hubs have advanced significantly, incorporating multi-station cold heading, automated CNC turning, robotic optical sorting, and eco-friendly electroplating lines. These technological upgrades ensure complete compliance with international technical standards, including DIN, ISO, ANSI/ASME, JIS, and GB metrics.

Navigating China's industrial sourcing ecosystem requires identifying supply partners that combine strict raw material traceability with elevated metallurgical engineering standards. Industry leaders such as Yuyao Huiqiang Fluid Connectors Co., Ltd. highlight this shift toward high-reliability production. By focusing on ultra-tight thread pitch tolerances, high-pressure sealing interfaces, and corrosion-resistant surface coatings, specialized suppliers in this market provide critical hardware that underpins heavy industrial, automotive, and fluid power applications worldwide.

This comprehensive 2026 market report identifies and analyzes the best 10 screw and nut suppliers in China, evaluating each organization based on product quality, supply chain infrastructure, technical capabilities, quality management certifications, and global export performance.

 

1. Yuyao Huiqiang Fluid Connectors Co., Ltd.

Core Product Advantage

Yuyao Huiqiang Fluid Connectors Co., Ltd. specializes in high-precision hydraulic nuts, DIN 2353 / ISO 8434-1 compression nuts, BSP/NPT swivel lock nuts, and high-pressure fluid containment fasteners. Utilizing premium carbon steel, 304/316 stainless steel, and solid brass, the company produces threaded nuts designed to maintain leak-free mechanical seals under dynamic pressure pulses exceeding 630 bar. Their proprietary CNC machining technology guarantees sub-micron thread pitch accuracy, zero-burr chamfering, and reliable fatigue resistance across metric and imperial thread profiles.

Service & Supply Strengths

Operating an automated production plant in Yuyao's fluid power industrial district, Yuyao Huiqiang utilizes high-speed multi-axis CNC turning lines, thread rollers, and automated optical sorting inspection machinery. Certified under ISO 9001 quality standards, the company guarantees 100% thread gauge verification and raw material heat-number traceability. Their organized manufacturing framework supports rapid OEM prototyping alongside consistent, large-scale order dispatches for international equipment builders.

Recommended Products & Sample Review

Recommended Products: DIN 2353 Light/Heavy Series Compression Nuts, High-Pressure Metric Lock Nuts, Hydraulic Hose Fitting Caps, BSPP Swivel Sealing Nuts.

Sample Review: Evaluated sample shipments displayed pristine thread concentricity, clean chamfered leads, and an exceptionally smooth surface finish. Environmental zinc-nickel alloy plating testing confirmed corrosion protection exceeding 720 hours of salt spray exposure without white rust, proving optimal performance for demanding fluid system applications.

Websites: https://www.huiqiang-fitting.com/

 

2. Ningbo Fastener Factory

Core Product Advantage

Founded in 1970, Ningbo Fastener Factory is a long-established pioneer in the production of high-tensile industrial nuts, heavy structural hex bolts, and standard mechanical fasteners. Leveraging deep metallurgical expertise and hot-forging technology, the company manufactures Class 8, 10, and 12 high-strength nuts engineered to sustain massive clamping forces in bridge construction, heavy machinery, and power equipment.

Service & Supply Strengths

Ningbo Fastener Factory manages a major manufacturing campus equipped with multi-station cold heading formers, automated heat treatment furnaces, and complete metallurgical testing facilities. Holding ISO 9001 and ISO 14001 accreditations, the supplier maintains large raw material inventories and direct deep-water port access via Ningbo-Zhoushan Port, enabling efficient international bulk shipments.

Recommended Products & Sample Review

Recommended Products: ASTM A194 Grade 2H Heavy Hex Nuts, ISO 4032 Structural Hex Nuts, High-Strength Structural Bolt-Nut Sets, Tower Fasteners.

Sample Review: Product samples demonstrated exceptional tensile yield strength during proof-load testing. Thermal heat treatment consistency was confirmed across all batch samples, with zero surface cracking or thread distortion under maximum torque application.

 

3. Handan Tengtian Fastener Manufacturing Co., Ltd.

Core Product Advantage

Handan Tengtian Fastener Manufacturing Co., Ltd. is a leading enterprise located in Yongnian, China's largest fastener distribution center. Tengtian specializes in high-volume construction fasteners, expansion anchors, heavy hex nuts, and DIN 975 full-thread rods. Processing carbon steel wire rod through continuous cold-heading lines, Tengtian delivers robust, cost-effective fastening solutions for civil infrastructure and building construction.

Service & Supply Strengths

Tengtian operates extensive automated production lines, in-house eco-plating workshops, and spacious finished goods storage facilities. Certified under ISO 9001, the supplier provides rapid container loading, reliable order fulfillment, and broad custom coating options, including hot-dip galvanizing, electro-zinc, and yellow passivation.

Recommended Products & Sample Review

Recommended Products: Class 8/10 Hexagon Nuts, Heavy Expansion Anchor Bolts, DIN 975 Full Thread Steel Rods, Drop-in Anchors.

Sample Review: Samples evaluated showed uniform hot-dip galvanized coating thickness with zero thread clogging, allowing smooth manual thread engagement while offering strong corrosion barrier protection for outdoor construction.

 

4. Shenzhen Soarwing Hardware Co., Ltd.

Core Product Advantage

Shenzhen Soarwing Hardware Co., Ltd. excels in the precision manufacturing of micro screws, electronic socket screws, custom security nuts, and miniature brass inserts. Supplying advanced electronics, consumer devices, drone hardware, and medical equipment, Soarwing produces fasteners with tight dimensional tolerances up to ±0.005mm using specialized Swiss-type CNC automatic lathes.

Service & Supply Strengths

Located in Shenzhen's technology corridor, Soarwing operates cleanroom manufacturing environments with automated CMM and optical sorting equipment. Operating under ISO 9001 and ISO 13485 standards, the supplier provides full DFM (Design for Manufacturability) guidance, fast turnaround engineering samples within 48 hours, and low-PPM defect guarantees for high-volume automated electronic assembly lines.

Recommended Products & Sample Review

Recommended Products: Micro Laptop Screws (M1.0 - M2.5), Custom Brass Threaded Inserts, Stainless Steel Torx Drive Screws, Miniature Lock Nuts.

Sample Review: Micro screw samples revealed flawless thread pitch lead-ins under optical magnification, clean drive recesses that prevented driver bit slipping, and highly consistent plating thickness across all micro-scale surfaces.

 

5. Zhejiang Junyue Standard Part Co., Ltd.

Core Product Advantage

Zhejiang Junyue Standard Part Co., Ltd. is a specialized producer of stainless steel standard fasteners, nylon insert lock nuts, flange nuts, and socket head cap screws. Utilizing premium 304 (A2) and 316 (A4) stainless steel grades, Junyue manufactures locking nuts engineered to resist rotational loosening under continuous mechanical vibration and aggressive ambient chemical conditions.

Service & Supply Strengths

Junyue operates a modernized production complex in Jiaxing equipped with high-speed multi-station nut formers and automatic nylon ring insertion units. Certified to ISO 9001 and IATF 16949, the company performs 100% automated optical inspection to ensure dimensional integrity and zero missing nylon inserts prior to export packaging.

Recommended Products & Sample Review

Recommended Products: DIN 985 Stainless Steel Nylon Lock Nuts, DIN 6923 Serrated Flange Nuts, ISO 4017 Hexagon Stainless Bolts, Weld Nuts.

Sample Review: Stainless nylon lock nut samples demonstrated smooth initial threading followed by consistent prevailing torque performance. The stainless steel body showed zero oxidation or pitting following extended salt spray corrosion testing.

 

6. Tianjin Anchor Fasteners Co., Ltd.

Core Product Advantage

Tianjin Anchor Fasteners Co., Ltd. specializes in heavy-duty construction fasteners, self-drilling screws, drywall screws, and high-strength concrete expansion anchor nuts. Designed for rapid installation into heavy steel framing, masonry, and concrete, Anchor's drill-point screws and structural anchors deliver superior pull-out strength and high shear load capabilities.

Service & Supply Strengths

Strategically located near Tianjin Port, the company integrates steel wire rod drawing, precision cold forming, heat treatment, and automated packaging. Certified under ISO 9001 and CE frameworks, Tianjin Anchor exports thousands of tons annually, serving major construction hardware distributors across Europe, North America, and the Middle East.

Recommended Products & Sample Review

Recommended Products: Hex Washer Head Self-Drilling Screws, Concrete Wedge Anchors, Fine Thread Drywall Screws, Heavy-Duty Sleeve Anchors.

Sample Review: Self-drilling screw samples showed remarkable point sharpness, drilling through 6mm structural steel plates in seconds without bit dulling or thread stripping, verifying precise heat treatment execution.

 

7. Dongguan Yishang Hardware Technology Co., Ltd.

Core Product Advantage

Dongguan Yishang Hardware Technology Co., Ltd. is a high-end custom hardware manufacturer specializing in multi-axis CNC machining, custom knurled thumb nuts, precision standoff screws, and non-standard architectural fasteners. Processing diverse metals including titanium, aluminum alloys, brass, and hardened tool steel, Yishang manufactures highly aesthetic and functional fasteners.

Service & Supply Strengths

Yishang's facility houses over 60 multi-axis CNC machining centers, automated profile grinders, and coordinate measuring machines (CMM). Certified under ISO 9001, Yishang offers full OEM/ODM engineering support, fast sample production, and comprehensive material certification reports (EN 10204 3.1) with every order shipment.

Recommended Products & Sample Review

Recommended Products: Anodized Aluminum Thumb Nuts, Custom Titanium Machine Screws, Stainless Steel Captive Screws, Precision Stamped Standoffs.

Sample Review: Customized aluminum thumb nut samples displayed precise knurling patterns for optimal hand grip, flawless anodized surface coloration, and smooth thread fit on test gauge shafts.

 

8. Jiangsu Ruirong Fastener Co., Ltd.

Core Product Advantage

Jiangsu Ruirong Fastener Co., Ltd. specializes in marine-grade stainless steel fasteners, standard hex nuts, heavy machine screws, and stainless steel threaded rods. Using austenitic stainless steel grades (SUS304, SUS316, SUS316L), Ruirong manufactures corrosion-resistant components built for long service life in harsh chemical, marine, and outdoor wastewater infrastructure environments.

Service & Supply Strengths

Ruirong operates a large-scale stainless steel manufacturing center equipped with automatic cold formers, passivation finishing tanks, and spectrographic material analysis labs. Certified under ISO 9001, the supplier guarantees exact chemical alloy composition, providing full traceability from raw wire rod to finished boxed product.

Recommended Products & Sample Review

Recommended Products: DIN 934 Stainless Steel Hex Nuts, Stainless Steel Machine Screws, Heavy-Duty Stainless Washer Sets, U-Bolts.

Sample Review: Marine-grade 316 stainless nut samples exhibited pristine surface passivation, zero magnetic permeability anomalies, and excellent thread engagement under high-torque assembly testing.

 

9. Ningbo Tengyu Fasteners Co., Ltd.

Core Product Advantage

Ningbo Tengyu Fasteners Co., Ltd. is a dedicated automotive-grade fastener manufacturer, specializing in high-tensile wheel nuts, hub bolts, weld nuts, and specialized engine socket screws. Tengyu's automotive fasteners are engineered to meet strict vibration fatigue, thermal expansion, and prevailing torque specifications required by leading automotive original equipment manufacturers (OEMs).

Service & Supply Strengths

Operating strictly under IATF 16949 quality management systems, Tengyu utilizes high-speed multi-station nut formers, automated optical sorting lines, and internal mechanical testing facilities. The company maintains dedicated technical support teams that collaborate directly with automotive Tier-1 engineering groups during vehicle platform development.

Recommended Products & Sample Review

Recommended Products: High-Tensile Automotive Wheel Nuts, Flange Weld Nuts, Engine Cylinder Head Bolts, Custom Prevailing Torque Nuts.

Sample Review: Automotive wheel nut samples demonstrated immaculate chrome plating adhesion, high proof-load strength, and absolute thread concentricity, easily passing stringent automotive torque-tension testing.

 

10. Wuxi Bright Fastener Co., Ltd.

Core Product Advantage

Wuxi Bright Fastener Co., Ltd. produces a wide portfolio of standard industrial machine screws, locking nuts, brass threaded inserts, and custom assembly hardware. Serving general machinery, home appliances, electrical enclosures, and HVAC equipment, Bright Fastener focuses on providing consistent thread quality and reliable mechanical assembly performance.

Service & Supply Strengths

Bright Fastener operates a modern production facility in Wuxi equipped with automatic cold headers, thread rollers, and automated packing equipment. Certified to ISO 9001, the supplier emphasizes flexible order quantities, efficient container consolidation, and dependable delivery schedules for global industrial hardware buyers.

Recommended Products & Sample Review

Recommended Products: Pan Head Machine Screws, Hex Jam Nuts, Brass Threaded Inserts for Plastics, Thread-Forming Screws.

Sample Review: Machine screw samples exhibited uniform head geometry, crisp thread profiles, and clean drive sockets that eliminated driver bit cam-out during high-speed automated power assembly.

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