GCW International

Heavy-Duty Catalog

Precision-engineered industrial fasteners meeting ISO 9001:2015 standards for high-stress structural applications.





GRADE 10.9

Structural Hex Bolt

DIN 931

Material: Hardened Alloy Steel
Diameter: M12 – M64
Finish: Hot Dip Galv

GRADE 8

Heavy Hex Nut

ASME B18.2.2

Material: High Tensile Steel
Thread: UNC / UNF
Finish: Zinc Trivalent

GRADE 12.9

Socket Cap Screw

ISO 4762

Material: Hardened Chrome
Drive: Internal Hex
Finish: Black Manganese

HDG

Hardened Washer

ASTM F436

Standard: Structural Grade
Thickness: 3mm – 8mm
Finish: Hot Dip Galv

FORGED

Lifting Eye Bolt

DIN 580

Type: Shoulder Type
SWL: Up to 20 Tons
Material: C15E Forged

engineering

Custom Fastening Solutions

Need specialized threading or proprietary alloy grades? Our global engineering team can deliver custom specs tailored to your project requirements.