
Our Vision
Committed to Cleaner and Greener Manufacturing
Our Mision
Deliver reliable fastener solutions through stable manufacturing, strict quality control, and long-term value for every customer.

About Us
About Hebei Wotu Fastener Manufacturing Co., Ltd.
A professional fastener manufacturer specializing in self-drilling screws, hot-dip galvanized bolts, power fittings, railway fasteners, and customized non-standard fasteners.
Hebei Wotu Fastener Manufacturing Co., Ltd. was founded in the 1990s and has developed into a large-scale hardware and fastener manufacturing enterprise integrating research, production, and sales. Covering an area of approximately 40,000 square meters, Wotu is equipped with advanced production equipment, automated production lines, and a professional technical team to support stable manufacturing and reliable product quality.
Company Strength
Manufacturing Strength Built for Stable Supply
With advanced equipment, skilled technicians, and large-scale production capacity, Wotu supports reliable fastener supply for industrial projects.
Advanced Equipment
More than 200 sets of advanced Taiwan-made self-drilling screw production equipment support efficient and stable manufacturing.
Automated Production Lines
With 6 CNC automated production lines, we ensure consistent product quality, improved production efficiency, and better control throughout the manufacturing process.
Technical Team
With senior engineers and technical personnel, Wotu supports product development, process control, and customized requirements.
Large Annual Capacity
Annual production exceeds 20,000 tons of self-drilling screws and 20,000 tons of hot-dip galvanized bolts.































































Sustainability
Committed to Cleaner and Greener Manufacturing
Wotu actively introduces advanced production purification equipment and continuously improves environmental management during production. By addressing pollution control and promoting energy-saving manufacturing practices, we are working toward a cleaner, more efficient, and more sustainable production system.
This commitment helps us build a stronger foundation for long-term development as a responsible fastener manufacturer.
Manufacturing Process
Advanced Equipment Ensures Stable Production
Every production process is supported by professional equipment to improve accuracy, efficiency, and product consistency.
Wire Drawing
Advanced wire drawing equipment improves wire stability and prepares high-quality raw material for forming.
Annealing
Automated spheroidizing annealing ensures uniform temperature control and enhances material processing performance.
Cold Heading
High-speed cold heading machines provide precise forming and stable product dimensions.
Tail Cutting
Professional tail cutting equipment creates sharp and smooth drill points for faster drilling performance.
Thread Rolling
Automatic thread rolling machines help ensure accurate threads, stable strength, and consistent fastening quality.
Heat Treatment
Mesh belt heat treatment furnaces improve surface hardness, core toughness, and carburizing consistency.
From wire processing to forming, thread rolling, heat treatment and final inspection, Wotu controls key production steps with professional equipment and automated production systems.
- Stable production accuracy
- Improved product consistency
- Efficient large-volume manufacturing
- Reliable support for customized fasteners
Strict Quality Control from Raw Material to Final Delivery
Quality is the foundation of Wotu’s development. From raw material purchasing to finished product delivery, every production stage is strictly controlled to ensure stable fastener performance and reliable delivery.
- Raw material inspection
- Dimensional accuracy check
- Thread inspection
- Surface hardness test
- Core hardness test
- Surface treatment check
Metallographic Cutting Machine
Used for sample preparation and section cutting, supporting more accurate material and structural inspection.
Rockwell Hardness Tester
Used to test fastener hardness and help verify product strength, wear resistance, and process stability.
Mounting Press
Supports metallographic sample mounting, making inspection samples more stable and suitable for detailed analysis.
Micro Vickers Hardness Tester
Used for precise hardness testing of small areas, helping evaluate surface hardness and carburized layer performance.
Tapping Speed Tester
Used to evaluate drilling and tapping performance, helping verify installation efficiency and self-drilling capability.
Image Measuring Instrument
Used for dimensional inspection and measurement accuracy control, ensuring product consistency with specifications.
Tensile Testing Machine
Used to test tensile performance and mechanical strength, supporting reliable fastening performance in demanding applications.
Complete Inspection Room
A dedicated inspection room supports systematic quality testing from raw material control to final delivery checking.
Product Performance
Designed for Faster Installation and Stronger Fixing
Our self-drilling screws are designed with sharp drill points, stable washer fitting, accurate positioning, strong drilling ability, smooth chip removal, and high pull-out strength. They help reduce installation time, improve construction efficiency, and provide reliable fastening performance in metal roofing, steel structure, construction, and industrial applications.
Applications
Fastener Solutions for Multiple Industrial Applications
Wotu fasteners are used in construction, roofing, steel structure, power infrastructure, railway projects, machinery, and outdoor engineering.

Steel Structure & Roofing
Self-drilling screws for metal sheets, steel structures, roofing systems, and construction installation.

Photovoltaic Brackets
Fasteners for photovoltaic mounting systems, outdoor brackets, and metal support structures.

Curtain Wall & Metal Panels
Self-drilling screws suitable for curtain walls, metal panels, ventilation ducts, and advertising boards.

Power Infrastructure
Power tower bolts and electric power fittings for overhead power lines, electric power construction, and substations.

Railway Projects
Railway bolts and related fastening products for transportation infrastructure applications.

Industrial Machinery & Equipment
Bolts, nuts, anchor bolts, and customized fasteners for machinery assembly, equipment installation, and industrial fastening.
Exhibition Module
Connecting with Global Customers Through Industry Exhibitions
Wotu actively participates in industry communication and market development, helping customers better understand our products, production strength, and service capabilities.



































