Professional OEM High Strength Structural Bolts Class 8.8 & 10.9 for Steel Bridges and Buildings
Price:
1000USD ~ 2000USD Per ton
MOQ:
negotiation
Delivery Time:
negotiation
Brand:
EVERCROSS
Product Description
High Strength Structural Bolts Overview
High-strength bolts are essential fasteners designed for steel structure construction in bridges, buildings, and industrial facilities. These bolts provide strong, reliable connections between structural steel members, ensuring overall stability and structural integrity.
Class 8.8 High Strength Bolt Torque Specifications
| S.Q | Bolt Specification | Performance Class | Pre-tension (KN) | Torque Coefficient | Initial Torque (N*m) | Final Torque Range (N*m) |
|---|---|---|---|---|---|---|
| 1 | M16 | 8.8s | 75 | 0.11-0.15 | 78 | 132-180 |
| 2 | M20 | 8.8s | 120 | 0.11-0.15 | 156 | 264-360 |
| 3 | M22 | 8.8s | 150 | 0.11-0.15 | 215 | 363-495 |
| 4 | M24 | 8.8s | 170 | 0.11-0.15 | 265 | 448.8-612 |
| 5 | M27 | 8.8s | 225 | 0.11-0.15 | 395 | 668.3-911.3 |
| 6 | M30 | 8.8s | 275 | 0.11-0.15 | 536 | 907.5-1237.5 |
Key Features and Benefits
- Efficient and reliable installation with established tightening procedures
- Ensures correct preload during assembly process
- Provides structural safety, stability, and long-term performance
- Simple construction with excellent mechanical properties
- Fatigue resistant and maintains connection under dynamic loads
Class 10.9 High Strength Bolt Torque Specifications
| S.Q | Bolt Specification | Performance Class | Pre-tension (KN) | Torque Coefficient | Initial Torque (N*m) | Final Torque Range (N*m) |
|---|---|---|---|---|---|---|
| 1 | M16 | 10.9s | 110 | 0.11-0.15 | 114 | 193.6-264 |
| 2 | M20 | 10.9s | 170 | 0.11-0.15 | 221 | 374-510 |
| 3 | M22 | 10.9s | 210 | 0.11-0.15 | 300 | 508.2-693 |
| 4 | M24 | 10.9s | 250 | 0.11-0.15 | 390 | 660-900 |
| 5 | M27 | 10.9s | 320 | 0.11-0.15 | 562 | 950.4-1296 |
| 6 | M30 | 10.9s | 390 | 0.11-0.15 | 761 | 1287-1755 |
Specialized Applications
High-strength bolts are ideal for challenging engineering projects including offshore platforms, marine structures, and seismic retrofitting of existing buildings. Their ability to withstand high loads and dynamic stresses makes them suitable for demanding structural requirements across various industries.
Evercross Steel Bridges Specifications
| Category | Specifications |
|---|---|
| Bridge Types | Bailey bridge, Modular bridge, Truss Bridge, Warren bridge, Arch bridge, Plate bridge, Beam bridge, Box girder bridge, Suspension bridge, Cable-stayed bridge, Floating bridge |
| Design Spans | 10M to 300M Single span |
| Carriage Way | Single lane, Double lanes, Multilane, Walkway |
| Loading Capacity | AASHTO HL93, HS15-44, HS20-44, HS25-44, BS5400 HA+20HB, HA+30HB, AS5100 Truck-T44, IRC 70R Class A/B, NATO STANAG MLC80/MLC110, Truck-60T, Trailer-80/100Ton |
| Steel Grade | EN10025 S355JR S355J0, EN10219 S460J0, EN10113 S460N, BS4360 Grade 55C, AS/NZS3678/3679/1163 Grade 350, ASTM A572/A572M GR50/GR65, GB1591 GB355B/C/D/460C |
| Certifications | ISO9001, ISO14001, ISO45001, EN1090, CIDB, COC, PVOC, SONCAP |
| Welding Standards | AWS D1.1/AWS D1.5, AS/NZS 1554 or equivalent |
| Bolts Standards | ISO898, AS/NZS1252, BS3692 or equivalent |
| Galvanization Codes | ISO1461, AS/NZS 4680, ASTM-A123, BS1706 or equivalent |
Connection Advantages
High strength bolts transmit external forces through pretension and friction, providing permanent connections with superior mechanical performance. These connections offer simple construction, fatigue resistance, and maintain integrity under dynamic loads without loosening.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
EVERCROSS BRIDGE TECHNOLOGY (SHANGHAI) CO.,LTD.
Location
ROOM 403,NO.2 BUILDING,NO.269 TONGXIE ROAD,CHANGNING DISTRICT,SHANGHAI,CHINA
Contact Person
Libby Chen