For international steel construction projects, 100% bolted field connections are overwhelmingly superior to on-site field welding. In SerBuild pre-engineered buildings, all structural welding is performed under strict ISO 3834-2 and EN 1090-2 factory-controlled conditions using automated submerged-arc robots. On site, columns, rafters, purlins, and bracings are assembled exclusively using certified high-strength Grade 8.8 and 10.9 structural bolts. This eliminates on-site hot work permits, fire hazards, expensive radiographic weld testing (NDT), and specialized certified site welders.
For international steel construction projects, 100% bolted field connections are overwhelmingly superior to on-site field welding. In SerBuild pre-engineered buildings, all structural welding is performed under strict ISO 3834-2 and EN 1090-2 factory-controlled conditions using automated submerged-arc robots. On site, columns, rafters, purlins, and bracings are assembled exclusively using certified high-strength Grade 8.8 and 10.9 structural bolts. This eliminates on-site hot work permits, fire hazards, expensive radiographic weld testing (NDT), and specialized certified site welders.
For international steel construction projects, 100% bolted field connections are overwhelmingly superior to on-site field welding. In SerBuild pre-engineered buildings, all structural welding is performed under strict ISO 3834-2 and EN 1090-2 factory-controlled conditions using automated submerged-arc robots. On site, columns, rafters, purlins, and bracings are assembled exclusively using certified high-strength Grade 8.8 and 10.9 structural bolts. This eliminates on-site hot work permits, fire hazards, expensive radiographic weld testing (NDT), and specialized certified site welders.
Submit your building dimensions, clear spans, and site location coordinates. Our structural engineering department provides itemized cost estimates and Eurocode 3 static reports within 24–48 hours.
Detailed answers to technical, manufacturing, export, and on-site assembly questions.
Yes. Pre-engineered bolted moment connections are designed per Eurocode 3 (EN 1993-1-8) using high-strength Grade 8.8 and 10.9 structural bolts with heavy endplates, transferring full axial, shear, and bending moment forces with complete safety.
Field welding burns away the anti-corrosion paint and galvanization coating, creating localized zones vulnerable to rapid rust. Bolted connections preserve the factory paint warranty intact.
Quality verification is fast and objective: an inspector uses a calibrated torque wrench to verify that every bolt is tightened to the required torque specification listed in our erection drawings.
Yes. 100% of structural bolts, flat washers, hardened washers, and nylon locking nuts are supplied in heavy-duty labeled wooden crates inside the container, with spare fasteners included.
Yes! Bolted steel structures can be fully disassembled, packed into containers, and re-erected at another site with zero structural damage, offering complete asset mobility.
Submit your project dimensions, drawings or requirements for an engineering review and itemized quote within 24–48 hours.