Product Guides

How to Identify High Tensile Bolts for Your Projects

Quick & Easy: How to Identify High Tensile Bolts When your project demands extra strength – whether it's for a vehicle upgrade or heavy machinery – high tensile bolts are a must. At AIMS Industrial, we’re here to help you understand what to look for in a fun and easy way. Understanding Bolt Grades Bolt grades indicate the strength and durability of the bolt. In Australia, you will commonly encounter these grades: Grade Description 8.8 Medium carbon steel, quenched and tempered 10.9 Alloy steel, quenched and tempered for extra strength 12.9 Alloy steel with the highest tensile strength How to Identify High Tensile Bolts Look for the grade markings stamped on the bolt head – these numbers tell you the bolt’s strength: 8.8: Marked with "8.8" 10.9: Marked with "10.9" 12.9: Marked with "12.9" Choose the Right Bolt for Your Application Not every project requires the same level of strength. Here are some of our top picks available at AIMS Industrial: Metric Hex Bolt - Grade 8.8 High Tensile Zinc Finish – Ideal for many structural applications. Bumax 10.9 Stainless Steel High Tensile Hex Bolt – Perfect for projects needing extra corrosion resistance. M20 x 24 x 80 Socket Head Shoulder Screw Plain High Tensile G12.9 – The top choice when maximum strength is essential. Safety, Time and Money Selecting the right high tensile bolt is crucial for the safety and longevity of your projects. Always check the bolt head for grade markings and choose the one that best fits your application. Explore our full range of high-quality fasteners on our Bolts Collection for more options. For a comprehensive guide CLICK HERE At AIMS Industrial, we make sure you have the right tools for every project. Happy bolting!