Karunia Utama
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Product

About The Product

High Strength Bolt

Our High Strength Bolts are manufactured to ASTM standards, providing reliable load-bearing capacity and durability for mechanical and structural applications. Ideal for use in construction, machinery, and infrastructure projects, they ensure secure and stable connections in demanding environments.

What We Use

Materials We Offer

Medium
Carbon Steel

  • High tensile strength and durability
  • Cost-effective material for general applications
  • Suitable for indoor or controlled environments
  • Easily machined and welded
  • Can be coated or treated for improved corrosion resistance

Alloy Steel

  • Superior corrosion and rust resistance
  • Excellent strength-to-weight ratio
  • Commonly used in food, chemical, and medical industries
  • Maintains appearance in extreme environments
  • Low maintenance and long-lasting material

Global Certifications

Standards We Comply With

Our Coating Options

Surface Treatments and Finishes

  • Natural
    Uncoated, for indoor or dry environments

  • Black Oxide
    Corrosion protection for outdoor use

  • Hot-dip Galvanized
    Superior corrosion protection for outdoor use

Tailored Solutions

Why Karunia Utama

Custom Dimensions

Lengths, diameters, and thread pitches as per specifications

Special Materials

Alternative steel grades and alloys

Testing Procedures

Tensile and hardness testing, Chemical composition analysis, Non-destructive testing (NDT)

Certifications Provided

Material Test Reports (MTR)
Certificates of Compliance, Third-party inspection reports upon request

Project Highlights

A Closer Look at Span Screws

Secure Your Foundation with Reliable High Strength Bolt

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Do you have ready stock for High Strength Bolt?

We keep a selection of commonly requested high strength bolt sizes and grades in stock. For specific or custom specifications, production lead time may apply. Feel free to contact us to check current availability

Yes, we provide certifications upon request, including the Certificate of Origin (COO), Certificate of Conformity (COC), and Mill Certificate for material traceability

Samples can be provided upon request, especially for custom specifications or new materials