Grade 8.8 High Strength Bolts M16-M30 for Structural Steel Construction with 75-275KN Pre-tension
Price:
1000USD ~ 2000USD Per ton
MOQ:
negotiation
Delivery Time:
negotiation
Brand:
EVERCROSS
Product Description
High Strength Grade 8.8 Bolts
High strength bolts are manufactured from premium high-strength steel materials, including the screw, nut, and washer components. These fasteners are engineered to deliver exceptional strength and reliability for critical structural connections in demanding industrial applications.
Key Applications
- Structural Steel Framing: Essential for connecting steel beams, columns, and structural members in buildings, bridges, and industrial facilities
- Bridge Construction: Critical components for connecting steel elements in bridge superstructures and substructures
- Industrial Facilities: Reliable connections for heavy machinery, equipment supports, and structural frameworks
Technical Specifications - Grade 8.8 Bolts
| S.Q | Bolt Specification | Performance Class | Construction 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 |
Technical Specifications - Grade 10.9 Bolts
| S.Q | Bolt Specification | Performance Class | Construction 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 |
Performance Advantages
- Transmits external forces through applied pretension and friction
- Designed for permanent structural connections
- Simple construction with excellent mechanical performance
- Resistant to fatigue and vibration-induced loosening
- Reliable performance under dynamic loading conditions
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 Capabilities
- 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 & Certifications
- 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
- Certificates: ISO9001, ISO14001, ISO45001, EN1090, CIDB, COC, PVOC, SONCAP
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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