If you're looking for high-performance fasteners that deliver exceptional durability and corrosion resistance, DIN 933 A2-70 Hexagon Head Bolts from Bigboltnut are your ideal choice. These bolts are manufactured in compliance with DIN 933 standards and made from premium-grade A2 (304) stainless steel, offering superior mechanical strength for demanding applications.

What Is an A2-70 Hex Bolt?

The A2-70 hexagon head bolt is a stainless steel fastener classified under the A2 category of austenitic steel and graded for a minimum tensile strength of 700 MPa. This makes it an excellent option for both indoor and outdoor environments where strength and corrosion resistance are critical.

Key Specifications and Features

• Material:  A2 Stainless Steel (Grade 304)
• Tensile Strength:  700 MPa minimum
• Head Type:  Hexagon head for secure tightening
• Corrosion Resistance:  Excellent, ideal for harsh and moist environments
• Standards:  Conforms to DIN 933
• Threading:  Precision threaded for reliable fastening

Applications of A2-70 Hex Bolts

These bolts are widely used across a range of industries, including:

• Construction and Structural Engineering: Ideal for frameworks, bridges, and steel structures
• Automotive & Machinery: Suitable for engines, heavy equipment, and mechanical joints
• Marine & Offshore: Withstands saltwater exposure and marine climates
• Chemical & Food Industries: Safe for sensitive environments, corrosion-proof
• General Industrial Use: Reliable for repairs, maintenance, and fabrication work

Whether for a large-scale infrastructure project or everyday industrial maintenance, A2-70 hex bolts deliver unmatched performance.

Hex Bolts vs. Hex Screws

Both A2-70 hex bolts and screws feature a six-sided head that supports high torque applications. However, the main difference lies in their installation:

Hex Bolts require nuts for secure fastening through components.

Hex Screws can be threaded directly into pre-tapped holes for self-locking assembly.

Why Choose Bigboltnut?

At Bigboltnut, we are committed to delivering fasteners that meet global quality benchmarks. Our A2-70 hex bolts are:

·         Manufactured using certified A2 stainless steel

·         Compliant with DIN 933 dimensions and strength standards

·         Available in a wide range of sizes and custom specifications

·         Tested for strength, durability, and corrosion resistance

·         Shipped worldwide with reliable delivery timelines

With a focus on quality, performance, and customer satisfaction, Bigboltnut has become a trusted name for industrial fasteners across global markets.