Engineered for direct fastening into steel plates and metal substrates without pilot drilling. Explore our high-precision structural components.
Sinsun Hardware is a globally recognized manufacturer and supplier of top-tier industrial fasteners. Operating as Northern China's largest specialized producer of Self-Tapping and Self-Drilling Screws, our central manufacturing complex covers a 30,000 square meter integrated facility designed for high-efficiency operations.
Equipped with a 12,000 square meter intelligent, ERP-managed warehouse capable of storing over 18,000 pallets, we process and distribute more than 8,500 shipping containers annually. We supply major commercial and infrastructure markets in the Middle East, Southeast Asia, South America, and Eastern Europe with a catalog of over 20,000 customizable SKUs.
Our production combines German-engineered cold-heading lines with Taiwanese precision tail-pinching machinery, ensuring high dimensional consistency and fast production output.
Understanding drill-point geometry, metallurgical structure, and corrosion-resistant coatings is critical for long-term joint integrity.
Our screws feature precise TEK-style point designs (ranging from TEK 2 to TEK 5) designed for maximum penetration speed. Taiwanese-manufactured tail-gripping tools ensure the drill point's cutting edges are sharp, preventing wobbling, walking, or heat buildup during installation.
Using four automated continuous heat treatment furnace lines, we control the carburization depth on Carbon Steel C1022A. This process hardens the outer surface (HV 560-650 min) to cut through structural steel, while maintaining a ductile core (HRC 28-32) to prevent head snapping.
We provide long-term corrosion protection using multi-layer surface finishes, including Mechanical Zinc Plating, Ruspert coatings, and Dacromet processes. Our fasteners are certified to withstand over 1,000 hours of continuous salt spray testing (ASTM B117) without showing red rust.
| Screw Classification | Material Base | Hardness Spec (Surface/Core) | Drill Point Capability | Salt Spray Performance | Application Standard |
|---|---|---|---|---|---|
| Standard Self-Drill (Hex/Pan) | AISI C1022A Carbon Steel | HV 560 Min / HRC 28-32 | Up to 6.0mm Structural Steel | 240 Hrs - 500 Hrs (Zinc Plated) | DIN 7504, ISO 15480 |
| Bi-Metal Self-Drilling Screws | SS304/SS316 Body + Alloy Tip | Alloy tip: HV 700 Min / Body: Duplex | Up to 12.0mm Structural Steel | 1000 Hrs - 2000 Hrs (Ruspert/Dacromet) | AS 3566 Class 3 & Class 4 |
| Metal Roofing Fasteners | C1022A + EPDM bonded washer | HV 580 Min / HRC 30-34 | Up to 8.0mm Heavy Purlins | 1000 Hrs (Ruspert Silver/Gray) | DIN 7504-K, AS 3566 |
| Concrete Direct Drive Screws | Boron Alloy Heat-Treated Steel | HV 600 Min / HRC 35-40 | Direct Masonry / Concrete Anchor | 1000 Hrs (Blue/Black Nano-Coating) | ETA Approved Anchors |
By managing every step from raw materials to final shipment, we maintain complete control over quality and delivery schedules.
Our raw material control begins at the steel mills. We source chemical-grade C1022A carbon wire rod coils directly from Ansteel Group and Xingtai Steel. Every batch of raw wire undergoes in-house spheroidizing annealing and drawing to ensure uniform carbon dispersion.
With over 200 German-imported multi-station cold heading lines operating around the clock, we maintain a production rate of over 1,200 pieces per minute per machine. This large capacity allows us to complete orders quickly, with standard production runs completed in 4-6 weeks.
Our 12,000 square meter warehouse utilizes an automated, ERP-driven sorting and storage layout. Supporting over 18,000 pallet locations, the system coordinates shipping, carton packing, and container loading, helping us maintain a 99%+ on-time delivery rate.
Sinsun self-drilling and concrete fasteners are built for high performance and reliability across multiple industries, including structural steel, roofing, marine, and solar installations.
Designed to secure profiled metal sheets to structural purlins. Equipped with weather-resistant EPDM bonded washers, they create a watertight seal that prevents leakage and stands up to thermal expansion.
2. Solar PV Bracket MountingOur heavy-duty bi-metal fasteners provide the strength and corrosion resistance needed to install aluminum solar frames on steel structures, even in harsh outdoor environments.
3. Commercial HVAC and Ducting InstallationPrecision Phillips pan-head screws deliver quick, jam-free fastening on high-speed automated assembly lines, keeping ducting projects moving smoothly.
From our founding in 2006, we have consistently expanded our facilities, upgraded our technology, and grown our global logistics footprint.
Established our first dedicated manufacturing shop in Tianjin, focusing on basic self-tapping fasteners and local supply channels.
Established our global trade division, exporting fasteners to international markets in Eastern Europe, Russia, and the Middle East.
Upgraded our facility with high-speed, multi-station cold heading machinery imported from Germany, significantly increasing our production capacity.
Completed our expansion to 36,000 tons of annual output, supported by 4 in-house heat treatment furnace lines and a fully automated packaging system.
We welcome clients to visit our plant and connect with our team at major trade shows worldwide.
Our design team partners with you to develop specialized fastening solutions for your unique applications.
Collaboration from the concept stage. Our team analyzes stress, corrosion risks, and installation environments to create customized 3D models and CAD blueprints.
Cold forming, CNC machining, and thread rolling processes designed for complex fastener geometries and tight dimensional tolerances.
Strict testing protocols including dimensional, hardness, and salt spray testing. Full compliance with international standards such as ISO, DIN, ANSI, and JIS.
Custom packaging solutions, shipping coordination, and support for high-volume contracts or flexible, just-in-time delivery schedules.
From initial consultation to final delivery, our structured process ensures transparency and quality at every step.
We review your application requirements, material choices, and performance specifications to define the scope of your project.
Our engineers provide detailed CAD designs, material options, and a transparent quote outlining production timelines.
We manufacture and deliver physical prototypes for your team to test in real-world application conditions before committing to full production.
During manufacturing, we perform regular audits to verify dimensions, thread tolerances, and surface finish consistency.
Every production batch undergoes final inspections, and we provide material certification and test reports for your records.
We handle shipping and customs documentation for international delivery, with our engineering team ready to provide ongoing support.
See how Sinsun fasteners perform in demanding real-world applications.
The Challenge: A tier-1 automotive supplier required a custom flange bolt with high vibration resistance and reduced weight for engine compartment brackets.
Sinsun Solution: We developed a customized alloy component with specialized thread-locking geometry. The production run was closely monitored for consistent hardness and dimensional tolerances.
The Result: The custom design reduced component weight by 15%, passed a 2,000-hour vibration test, and integrated smoothly into the client's automated assembly line.
The Challenge: A marine contractor needed large-diameter structural bolts with high corrosion resistance for offshore platforms exposed to salt spray.
Sinsun Solution: We supplied duplex stainless steel fasteners with a specialized passivated coating, accompanied by full material traceability reports.
The Result: The fasteners have delivered reliable performance with zero corrosion issues, meeting the offshore project's long-term service expectations.
Key factors that ensure our fasteners meet strict industrial standards.
Our metallurgical engineers optimize carbon steel formulations, heat treatment parameters, and structural geometries for each batch of fasteners.
By managing wire drawing, cold forming, tail pinching, threading, and heat treating under one roof, we maintain tight control over quality.
We support both high-volume runs for large distributors and custom orders for specialized engineering projects.
Our experienced logistics team ensures smooth shipping and customs handling for clients across North America, Europe, Asia, and Latin America.
Technical details and procurement specifications for Sinsun fasteners.
We manufacture over 20,000 SKUs of professional fasteners, including screws, nails, rivets, and anchors.
Heavy-duty concrete anchors, staples, and specialty nails designed for demanding construction applications.
SINSUN