About The Product
Hex Bolt
Our hex bolts are available in multiple sizes, materials, and finishes to suit a wide range of applications. They are produced according to widely recognized standards like ASTM, ISO, JIS, and DIN, ensuring consistency across uses
We also provide flexibility for clients who require adjustments based on specific technical or compliance needs
What We Use
Materials We Offer
Mild Steel
- High ductility and malleability
- Suitable for welding and machining
- Commonly used in construction and general fabrication
- Cost-effective option for large-scale projects
- Good tensile strength with moderate corrosion resistance
Medium Steel
- Higher strength and hardness than mild steel
- Ideal for load-bearing and structural applications
- Excellent performance under high pressure
- Available in various grades and carbon content
- Requires coating or treatment for corrosion resistance
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
Stainless Steel
- Exceptional resistance to corrosion and staining
- Ideal for hygienic or corrosive environments
- Widely used in food processing, pharmaceuticals, and marine applications
- Retains a clean, polished look over time
- Requires minimal maintenance in harsh conditions
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
Product Overview
Types of Hex Bolts
Here are several of our featured hex bolt types, trusted across a range of industries Other variations are also available upon request to meet specific standards or custom project needs
Hex Bolt
Head Socket Screw
Countersunk Bolt
Flange Hex Bolt
Global Certifications
Standards We Comply With
Our Coating Options
Surface Treatments and Finishes
- Natural
Uncoated, for indoor or dry environments - Black Finish
Corrosion protection for outdoor use - Hot-dip Galvanized
Superior corrosion protection for outdoor use - Zinc Plated Galvanized (White & Yellow)
Electro-galvanized for moderate corrosion resistance
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
Secure Your Foundation with Reliable Hex Bolts!
Need Help?
We've Got You Covered
Do you have ready stock for Span Screw?
We carry select sizes and specifications of Span Screws for common applications. For special materials or custom configurations, lead time may be required. Feel free to contact us to check current availability.
Do you provide product certifications?
Yes, we provide certifications upon request, including the Certificate of Origin (COO), Certificate of Conformity (COC), and Mill Certificate for material traceability
Can I get a sample before placing a bulk order?
Samples can be provided upon request, especially for custom specifications or new materials
