Bigboltnut is a trusted manufacturer of ISO 898-1 Class 8.8 high-strength bolts, engineered for superior durability in heavy-duty applications. Our precision-crafted industrial fasteners meet international standards, making them ideal for construction, automotive, and engineering industries.

Key Features of Grade 8.8 Bolts

 High Tensile Strength – 800 MPa tensile strength and a minimum yield strength of 640 MPa ensure long-lasting performance.

 Superior Hardness & Durability – Designed for critical structural and equipment applications requiring reliability and resistance to wear.

 Global Standards Compliance – Our bolts meet industry benchmarks like ASTM A325, DIN 933, and EN 15048, providing international compatibility.

Corrosion Protection Coatings – Available in zinc plating, hot-dip galvanization, and black oxide finishes for enhanced protection.

Multiple Design Options – Choose from hex bolts, socket head bolts, and countersunk bolts, available in custom and standard sizes.

Why Choose Bigboltnut?

Custom Manufacturing – Get tailored bolt sizes and coatings for your specific requirements.

Strict Quality Assurance – Every bolt undergoes rigorous testing to ensure compliance with ISO 898-1 standards.

 Fast Shipping & Bulk Orders – We handle large-scale projects with quick delivery worldwide.

Bigboltnut guarantees top-quality industrial fasteners with high performance, strength, and longevity. Contact us for custom fastener solutions or bulk orders today!