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High-strength Bolts
- Product Model: ASTM A36/ASTM A572GR50/EN S355JR/S355J2 Steel Structure
- Unit of Measurement: Ton
- Price Range: 1300—3000 USD/T.The specific price needs to be provided with drawings and calculated based on material requirements, processing requirements, paint requirements, etc.
- Overview
- Recommended Products
Product Overview
High-Strength Bolts are critical mechanical fasteners used in steel structure connections to provide reliable and high-capacity joints. They are specifically designed to resist high tensile, shear, and fatigue loads, ensuring the safety and stability of steel structures under static and dynamic forces.
High-strength bolts are widely used in:
Steel structure buildings
Bridges and infrastructure projects
Industrial plants and heavy steel structures
Towers, stations, and large-span structures
Prefabricated and modular steel buildings
Typical systems include bolt + nut + washer assemblies, installed as friction-type or bearing-type connections.
Product Attributes
| After-sales Service | On site installation or installation guidance |
| Warranty Period | 1 year |
| Transportation Packaging | Container or bulk carrier transportation |
| Specification | Based on actual project products |
| Brand | Guoshun |
| Place of Origin | Jinan |
| Standard | European, American, and National Standards |
| Surface Treatment | Spray painting or galvanizing |
Trade Information
● Unit of Measurement: Ton
● Price Range: 1300—3000 USD/T.The specific price needs to be provided with drawings and calculated based on material requirements, processing requirements, paint requirements, etc.
● Minimum Order Quantity (MOQ): 100 Tons
Key Advantages
High Load Capacity
Designed to withstand high tensile and shear forces.
Reliable Structural Performance
Provides stable and secure connections under vibration and dynamic loads.
Standardized & Interchangeable
Manufactured according to international standards for global compatibility.
Easy Installation & Maintenance
Simple assembly with controlled tightening methods.
Excellent Fatigue Resistance
Suitable for bridges and cyclic load structures.
Durable & Corrosion Resistant
Surface treatments ensure long service life in harsh environments.
Consistent Quality
Precision manufacturing ensures uniform strength and performance.
Technical Features & Production Process
1 Technical Features
High-strength alloy steel materials
Common strength grades: 8.8, 10.9, 12.9
Supplied as complete sets (bolt, nut, washer)
Friction-type (slip-critical) and bearing-type connections
Controlled pre-tension for structural reliability
Optional hot-dip galvanizing or surface coating
Compatible with steel beams, columns, plates, and trusses
2 Production Process
Raw material inspection and cutting
Cold or hot forging of bolt blanks
Thread rolling and machining
Heat treatment (quenching and tempering)
Mechanical property testing
Surface treatment (black oxide, galvanizing, coating)
Dimensional inspection and quality control
Packing and delivery
Technical Specifications (Customizable)
| Item | Specification Range |
| Bolt Type | Hexagonal high-strength bolt |
| Diameter | M12 – M64 |
| Length | Customized |
| Strength Grade | 8.8 / 10.9 / 12.9 |
| Material | Alloy steel |
| Connection Type | Friction-type / Bearing-type |
| Surface Treatment | Black / Galvanized / Dacromet |
| Standard | ASTM / EN / GB / AS |
| Design Life | 30 – 50 years |
Application Scenarios
Steel Beam-to-Column Connections
Bridge Steel Structure Connections
Industrial Plant Steel Frames
Truss and Space Frame Connections
Tower and Mast Structures
Prefabricated & Modular Steel Buildings
Why Choose Us
Professional Fastener Manufacturer
Specialized in high-strength bolts for steel structures.
Strict Quality Control System
Material traceability, heat treatment control, and performance testing.
International Standard Compliance
Products meet ASTM, EN, GB, and AS requirements.
Complete Supply Capability
Bolts, nuts, washers, and matching accessories supplied together.
Extensive Project Experience
High-strength bolts supplied for buildings, bridges, and infrastructure worldwide.
Reliable Delivery & Competitive Pricing
Factory-direct supply ensures stable quality and cost efficiency.
Our Factory
Raw material storageMaterial cuttingAutomatic Welding
Manual weldingWeld seam treatmentDeep processing
PaintingDeliveryPackaging
