ASME B18.2.1 Hot-Dip Galvanized Hex Bolt | Custom Sizes Available | China Manufacturer

Hot-dip galvanized hex bolt 10x70 Q235B for construction and steel structures

Product Parameters

Model Specification10*70
MaterialQ235B
Surface TreatmentHot-dip galvanized
Dimensions10
Weight68
Installation MethodBolt fastening
Application ScenarioBracket mounting
Packaging MethodBox/Bag packaging
Minimum Order Quantity100
Exw PriceUS$0.02-0.22 /Pieces
*Prices are based on last quarter's average. For factory quotes, contact us.

Product Description

Our Hot Dipped Galvanized Hex Bolt (10x70mm) is manufactured from Q235B carbon steel with hot dipped galvanized coating, providing superior anti-corrosion protection for construction, steel structures, and offshore applications. Meeting ASME B18.2.1 standards, these high-strength hex bolts offer 800MPa tensile strength, making them ideal for heavy-duty bracket mounting in harsh environments with excellent saltwater resistance and durable zinc coating.

Product Specifications

Material Q235B Carbon Steel
Standard Size M10 x 70mm
Surface Treatment Hot Dipped Galvanized
Tensile Strength 800MPa
Standards ASME B18.2.1
Zinc Coating 50-80μm thickness
Application Construction & Offshore
Corrosion Resistance Saltwater & Weather
Custom Sizes M6-M24 Available
Minimum Order 1000 pieces

Trade Terms

Term Description
Incoterms EXW / FOB Tianjin / CIF / DDP (Negotiable)
Payment Terms T/T 30% deposit, 70% balance before shipment
Delivery Time 15–22 days for standard orders; expedited production available
Minimum Order 1000 pieces (Bulk order discounts available)
Sample Policy Free samples available, freight collected
Port of Loading Tianjin Xingang Port, China
Certifications Mill test certificates provided for all batches

Key Features

Our Q235B carbon steel hex bolts deliver superior performance for structural and offshore applications:

Premium Q235B Carbon Steel
High 800MPa tensile strength engineered for demanding structural applications, providing reliable load-bearing capacity in heavy-duty construction environments.
Hot Dipped Galvanized Coating
Superior anti-rust protection with 50-80μm zinc layer thickness, ensuring long-term corrosion resistance in harsh outdoor and marine environments.
ASME B18.2.1 Compliant
Meets international construction bolt standards and suitable for CE-certified projects, ensuring global compliance and quality assurance for professional applications.
Saltwater & Weather Resistant
Perfect for offshore, marine, and outdoor use with exceptional resistance to saltwater corrosion, making them ideal for coastal and wind farm installations.
Standard & Custom Sizing
Available in M10 x 70mm standard size with custom sizes from M6-M24 and various lengths upon request to meet specific project requirements.
Bulk Order Advantages
Competitive China factory pricing with 1000-piece MOQ, bulk discounts, and custom packaging options including mill test certificates for material traceability.

FAQ

  • 1. What standards does this hex bolt meet?
    Our bolts comply with ASME B18.2.1 international standards and are suitable for CE-certified construction projects, ensuring global compliance and professional quality assurance.
  • 2. Can these bolts withstand coastal and marine environments?
    Yes, the hot dipped galvanized coating with 50-80μm zinc layer provides excellent saltwater corrosion resistance, making them ideal for offshore and marine applications.
  • 3. What’s the tensile strength of these bolts?
    These Q235B carbon steel bolts offer 800MPa tensile strength, making them ideal for structural applications requiring high load-bearing capacity and mechanical reliability.
  • 4. Do you offer different sizes besides 10x70mm?
    Yes, we provide comprehensive custom sizing from M6-M24 diameter with various lengths upon request to meet specific project and application requirements.
  • 5. Are these suitable for wind turbine installations?
    Absolutely! Our bolts are widely used in offshore wind farms due to their exceptional corrosion resistance and high tensile strength, meeting the demanding requirements of renewable energy projects.
  • 6. Do you provide material certifications?
    Yes, we supply mill test certificates for all material batches, providing complete material traceability and quality documentation for professional construction and engineering projects.

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Need competitive pricing for your galvanized hex bolt requirements? Contact us today for bulk discounts and custom solutions.

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