High Strength Bolts Class 8.8 & 10.9 for Steel Bridges - M16 to M30 Sizes with 75-390KN Pre-tension
Price:
1000USD ~ 2000USD Per ton
MOQ:
negotiation
Delivery Time:
negotiation
Brand:
EVERCROSS
Product Description
High Strength Bolts for Construction and Engineering
High strength bolts are manufactured from premium high-strength steel materials, including the screw, nut, and washer components. These bolts transmit external forces through applied pretension and friction mechanisms.
Key Advantages:
- Simple construction and installation
- Excellent mechanical performance
- Reusable and easy to disassemble
- Superior fatigue resistance
- Maintains tight connection under dynamic loads
- Ideal for permanent structural connections
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) | Measured Coefficient | Final Torque (N*m) |
|---|---|---|---|---|---|---|---|---|
| 1 | M16 | 8.8s | 75 | 0.11~0.15 | 78 | 132~180 | 0.121 | 145 |
| 2 | M20 | 8.8s | 120 | 0.11~0.15 | 156 | 264~360 | 0.123 | 295 |
| 3 | M22 | 8.8s | 150 | 0.11~0.15 | 215 | 363~495 | 0.125 | 413 |
| 4 | M24 | 8.8s | 170 | 0.11~0.15 | 265 | 448.8~612 | 0.125 | 510 |
| 5 | M27 | 8.8s | 225 | 0.11~0.15 | 395 | 668.3~911.3 | 0.125 | 759 |
| 6 | M30 | 8.8s | 275 | 0.11~0.15 | 536 | 907.5~1237.5 | 0.125 | 1031 |
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) | Measured Coefficient | Final Torque (N*m) |
|---|---|---|---|---|---|---|---|---|
| 1 | M16 | 10.9s | 110 | 0.11~0.15 | 114 | 193.6~264 | 0.122 | 215 |
| 2 | M20 | 10.9s | 170 | 0.11~0.15 | 221 | 374~510 | 0.12 | 408 |
| 3 | M22 | 10.9s | 210 | 0.11~0.15 | 300 | 508.2~693 | 0.126 | 582 |
| 4 | M24 | 10.9s | 250 | 0.11~0.15 | 390 | 660~900 | 0.125 | 750 |
| 5 | M27 | 10.9s | 320 | 0.11~0.15 | 562 | 950.4~1296 | 0.125 | 1080 |
| 6 | M30 | 10.9s | 390 | 0.11~0.15 | 761 | 1287~1755 | 0.125 | 1463 |
Evercross Steel Bridges Specifications
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 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 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: ISO9001, ISO14001, ISO45001, EN1090, CIDB, COC, PVOC, SONCAP
Welding Standards: AWS D1.1/AWS D1.5, AS/NZS 1554 or equivalent
Bolt Standards: ISO898, AS/NZS1252, BS3692 or equivalent
Galvanization Codes: ISO1461, AS/NZS 4680, ASTM-A123, BS1706 or equivalent
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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