Class 10.9 High-Strength Bolts M16-M30 with 110-390KN Pre-tension for Steel Structures
Price:
1000USD ~ 2000USD Per ton
MOQ:
negotiation
Delivery Time:
negotiation
Brand:
EVERCROSS
Product Description
High-Strength Bolts for Structural Applications
High-strength bolts are essential fasteners designed for critical structural connections in bridges, buildings, and industrial facilities. These bolts ensure structural stability and integrity through reliable, permanent connections.
Key Advantages
- Simple construction and installation
- Excellent mechanical performance and fatigue resistance
- Secure connection that prevents loosening under dynamic loads
- Reliable force transmission through pretension and friction
Material Specifications
Manufactured from high-grade alloy steel including ASTM A325 and ASTM A490 standards, providing superior tensile strength compared to standard bolts.
Tensile Strength Ratings
ASTM A325 bolts: Minimum 120 ksi (825 MPa)
ASTM A490 bolts: Minimum 150 ksi (1035 MPa)
Torque Specifications
Class 8.8 High-Strength Bolts
| 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 |
Class 10.9 High-Strength Bolts
| 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 |
Evercross Steel Bridges
Bridge Types
Bailey bridge (Compact-200, Compact-100, LSB, PB100, China-321, BSB), Modular bridge (GWD, Delta, 450-type), Truss Bridge, Warren bridge, Arch bridge, Plate bridge, Beam bridge, Box girder bridge, Suspension bridge, Cable-stayed bridge, Floating bridge
Design Specifications
- 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
Material Standards
Steel Grades: 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 & Standards
- Certificates: ISO9001, ISO14001, ISO45001, EN1090, CIDB, COC, PVOC, SONCAP
- Welding: AWS D1.1/D1.5, AS/NZS 1554 or equivalent
- Bolts: ISO898, AS/NZS1252, BS3692 or equivalent
- Galvanization: ISO1461, AS/NZS 4680, ASTM-A123, BS1706 or equivalent
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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