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Metric Grade A-4 Bolts


High-Quality Metric Grade A-4 Bolts | U-Bolt-It

What is a Metric Grade A-4 Bolt?

A Metric Grade A-4 bolt is a premium industrial fastener manufactured using high-performance austenitic stainless steel materials. Known for their exceptional durability in harsh environments, these bolts exhibit superior corrosion and acid resistance, along with highly reliable tensile strength. Additionally, most of the alloys used to manufacture A-4 metric fasteners are completely non-magnetic.

Technical Specifications and Standards

Our metric Grade A-4 fasteners are engineered to withstand extreme conditions and meet strict industry standards. Key specifications include:

  • Yield Strength: Averages 600 MPa
  • Tensile Strength: Averages 800 MPa
  • Industry Standards: Meets ASTM 316 specifications
  • Properties: Non-magnetic construction with superior acid and rust resistance

Common Industry Applications

Because of their robust resistance to harsh elements and corrosive chemicals, Metric Grade A-4 bolts are the ideal fastening solution for:

  • Marine and coastal infrastructure
  • Chemical processing equipment and plants
  • Harsh outdoor applications and structural builds
  • General corrosive industrial environments

Extensive Inventory and Custom Finishes

U-Bolt-It distributes and manufactures high-quality metric A-4 bolts for all industries. We work directly with the top manufacturers in the industry and stock an extensive inventory of metric grade A-4 bolts in a wide range of standard, coarse, and fine sizes. In addition, U-Bolt-It offers custom finishing and coating services to ensure your hardware meets the exact specifications of your project.

Request a Quote Today

U-Bolt-It's bolt specialists are available to help you select the best fastener for your specific application. Their application expertise will ensure that the hardware you select will perform at or above your strict requirements. Contact our team directly by phone or give us a call today for an estimate. We look forward to speaking with you!

Types of Metric Grade A-4 Bolts


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