Hex Head Bolt
High-strength carbon steel zinc-plated bolt compliant with GB/T 5783, for machinery, steel structures, etc.
This M8 hex head bolt is made of grade 8.8 high-strength carbon steel with blue-white zinc plating, offering good rust resistance and mechanical performance.
High thread accuracy and tight fit meet general industrial assembly torque requirements; the hex head allows easy wrench operation and high installation efficiency.
Widely used in machinery, steel structures, auto parts and general industrial connections, with different lengths and surface treatments available per customer needs.
Key Features
✓
Grade 8.8 high-strength carbon steel
✓
Blue-white zinc anti-rust surface
✓
High thread accuracy, stable fit
✓
Custom non-standard lengths supported
Specifications
MaterialCarbon Steel Grade 8.8
Surface TreatmentBlue-White Zinc
Length Range20 mm – 100 mm
StandardGB/T 5783