Structural steelwork requires fasteners with immense shear and tensile strength to support the weight of skyscrapers, bridges, and stadiums.
SRG Fasteners manufactures high-tensile structural bolts (Property Class 8.8 and 10.9) to international standards (ISO 4014, DIN 931). Our fasteners are supplied with full traceability and rigorous mechanical testing certifications.
Frequently Asked Questions
What does the 8.8 mean on a bolt head?
It indicates the property class. The first '8' means the ultimate tensile strength is 800 MPa. The '.8' means the yield strength is 80% of the tensile strength (640 MPa).