Meta Description: Discover how screws ensure structural integrity in buildings! Learn material selection, torque specs, and why FINEX is the top choice for architects and engineers.
From skyscrapers to smart homes, screws form the invisible backbone of modern construction. This guide reveals professional techniques for selecting, installing, and maintaining structural fasteners—complete with torque charts, material comparisons, and FINEX’s engineered solutions for earthquake-resistant buildings.
Structural Steel Connections
Concrete Formwork Systems
Curtain Wall Installation
Wood Framing
MEP System Mounting
Material | Yield Strength | Corrosion Resistance | Best Use Case |
---|---|---|---|
304 Stainless | 205 MPa | 1,500h salt spray | Coastal buildings |
Hot-Dip Galvanized | 340 MPa | 500h salt spray | Interior framing |
Titanium Gr5 | 828 MPa | Unlimited | Chemical plants |
Ceramic-Coated | 450 MPa | 3,000h salt spray | Bridge suspensions |
Case Study: Burj Khalifa used 12 tons of FINEX A4-80 screws for its stainless steel cladding.
Preload Force Calculation
Where: σy = yield strength, As = stress area, d/D = thread ratio
Installation Torque Table
Screw Size | Material | Torque (N·m) |
---|---|---|
M12 | Carbon Steel | 90–110 |
M16 | Stainless | 220–260 |
M20 | Structural | 400–480 |
Thermal Expansion Compensation
Seismic Retrofit Standards
Over-Torquing Drywall Screws
Galvanic Corrosion
Improver Pilot Holes
Q: Best screw for concrete-metal interfaces?
A: FINEX CC-8 concrete screws with 8.8 grade strength.
Q: How to prevent screw corrosion in swimming pools?
A: 316 stainless + Xylan 1010 coating (5,000h salt spray).
Q: Alternative to welding in seismic zones?
A: FINEX HSFG bolts (F3125 Grade A490) with 200% slip factor.
Free Resource: Download Our Structural Screw Selection Calculator
Contact Person: Mrs. Irene chen
Tel: +86-13527934468