tianhong Customized high-precision cross countersunk screws
High-precision cross recessed countersunk screws with various tail designs (cutting, sharp, drill), featuring flush mounting, strong holding force, easy installation,...
High-quality multi-series bolts including carriage bolts, hex socket carriage bolts, hex socket cylinder head screws and torx cylinder head hollow bolts, featuring excellent durability, precise manufacturing, multiple material options and customized services, widely used in various industrial fields to meet diverse fastening needs.
Zhejiang Tianhong Fasteners Co., Ltd. provides high-performance bolt types, each tailored to specific application and functional needs. All products are strictly manufactured to ensure stable performance, strong load-bearing capacity and long service life, serving as reliable industrial fastening solutions.
Our product range includes Carriage Bolts with a domed head and square neck for anti-rotation, ensuring secure connections for wood, metal and composite materials with a smooth, safe design suitable for wood construction, furniture and outdoor fixtures; Hex Socket Carriage Bolts that combine the anti-rotation feature of carriage bolts with the convenience of a hex socket, ideal for narrow spaces and applications like machinery, auto parts and agricultural equipment; Hex Socket Cylinder Head Screws featuring a cylindrical head and internal hex socket for uniform clamping force and precise torque control, perfect for high-stress scenarios such as electronics and renewable energy equipment; and Torx Cylinder Head Hollow Bolts with a torx drive for anti-slip and high torque, along with a hollow, lightweight and tamper-resistant design, suitable for electronic devices, auto parts and precision instruments.
| System of Measurement | Inch, Metric |
| Material | Stainless Steel, Carbon Steel, Steel, Brass, Iron, Aluminum |
| Thread Size | Metric: M1-M16; or customized |
| Head Type | Pan Head, Hex Head, Slotted Head, Torx Head, One-Way Head, Step Head, Flat Head, Large Head |
| Surface Finishing | Zinc Plating, Nickel Plating, Black Oxide, Dacromet |
| Production Process: | Cold Heading, Cold Forging，Cold Forming |
| Standard | ISO, JIS, GB, ANSI, BSW, DIN, Non-standard customized |
| Grade | 4.8, 6.8, 8.8, 12.9, etc |
| Brand | TNHO |
| Application | Electric Meter, Electrical, Electronic, Auto Parts, Renewable Energy Industry, etc. |
1.Superior Quality & Durability: Adopting high-quality raw materials and advanced cold heading, cold forging and cold forming processes, the products have excellent tensile strength, shear strength and corrosion resistance, ensuring stable performance in harsh environments and long service life.
2.Diverse Types & Versatility: Covering four core bolt types, each product is designed for specific functional needs, compatible with various installation scenarios and materials, meeting the diverse fastening requirements of different industries such as electronics, automotive and renewable energy.
3.Precise Manufacturing & High Compatibility: Strictly produced in accordance with international standards (ISO, JIS, GB, etc.), with precise thread processing and accurate dimensions, ensuring good interchangeability and compatibility with other components, reducing installation troubles.
4.Customizable Services: We provide customized solutions for thread size, head type, surface finishing and material according to customer needs, flexibly meeting the special requirements of different projects and applications.
5.Easy Installation & Reliable Performance: The rational design of each product (such as hex socket, torx drive, square neck anti-rotation) ensures convenient installation, efficient torque transfer and anti-loosening performance, improving assembly efficiency and structural stability.
Professional Manufacturer
Zhejiang Tianhong Fasteners Co., Ltd. is a professional fastener manufacturer with rich experience in R&D, production and sales of bolts, focusing on providing high-quality fastening products for global customers.
Advanced Production Equipment
Equipped with advanced production lines and testing equipment, we strictly control every link from raw material selection to product delivery, ensuring that each product meets quality standards.
Strong R&D Capability
We have a professional R&D team that can continuously develop new products and improve product performance according to market demand and industry trends, providing customers with forward-looking solutions.
Perfect After-Sales Service
We provide comprehensive after-sales service, including product consultation, technical support, quality feedback and problem solving, ensuring that customers receive timely and professional services throughout the cooperation process.
Competitive Price & Stable Supply
Relying on mature production technology and large-scale production capacity, we can provide high-quality products at competitive prices, and ensure stable supply capacity to meet the batch demand of customers.
