- Advantages of Space Frame Bolt
- High Tensile Strength for Long-Span Structures Space frame bolts are manufactured per GB/T16939 standard, grade 10.9S or 12.9S. Made of alloy steel with quenching & tempering heat treatment. It withstands multi-direction loads including dead load, snow, wind and seismic force, to secure large-span roof structures like stadiums, gas station canopies and exhibition halls.
- Prefabricated Assembly, No On-site Welding The bolt ball joint system uses fully bolted connection without welding on site. All steel pipes and components are prefabricated in factory. Workers only use torque wrenches to assemble, cutting construction time and removing fire risk caused by welding.
- Precise Thread & Stable Preload Performance Class 6g high precision thread ensures smooth meshing with bolt balls. Controlled pre-tightening force prevents loosening under cyclic vibration loads, keeping high rigidity of space grid nodes. The slide groove on bolt shaft works with sleeve pin to assist smooth installation.
- Multiple Surface Treatments for Various Environments Available finishes: black oxide, Dacromet, hot dip galvanized, thermal diffusion zinc. Dacromet and hot dip galvanized options are recommended for coastal high salt fog and humid industrial projects for excellent anti-corrosion performance.
- Complete Standard Sizes & Traceable Quality Full metric sizes from M12 to M64 for different bolt ball diameters. Material test certificates and mechanical inspection reports are supplied for project acceptance. Custom dimensions are available.
- Easy Maintenance & Replacement Bolted nodes are detachable. Single members can be replaced without damaging the whole space frame, reducing long-term maintenance cost.
Post time: 2026-09-14 15:24:55
