Explore Our TIME-SERT® Thread Repair Range

TIME-SERT® Metric Inserts
TIME-SERT® Metric Kits
TIME-SERT® Master Kits
TIME-SERT® Tools & Accessories
TIME-SERT® Imperial Range

Complete Oversized Thread Repair Kit Solutions

If a previous repair has pulled out, you need a stronger option. Therefore, an oversized thread repair kit is often the best choice. Each kit contains the drill, tap, installation tool, and inserts needed to complete the job. Because the insert is larger in diameter, it cuts into fresh material. As a result, the repair gains improved grip and durability. Many professionals rely on an oversize thread repair kit for high-stress engine work.

High-Strength Big-Sert Inserts for Direct Replacement

In some cases, you may only need replacement inserts. For that reason, we also stock Big-Sert inserts separately. These inserts are ideal when you already own the tooling. Moreover, they suit repeat jobs where multiple repairs are required. Each oversize thread insert kit option ensures consistent sizing and secure fit. Consequently, your repaired thread handles load, heat, and vibration with confidence.

Ideal for Cylinder Head and Spark Plug Repairs

Big Sert Thread Repair systems are widely used for cylinder head thread repair. They are especially effective for spark plug thread repair in aluminium heads. Instead of replacing expensive components, you can restore the damaged hole quickly. Furthermore, the thicker insert wall increases pull-out resistance. Because of this design, the finished repair often exceeds the strength of the original thread.

Heavy Duty Thread Repair for Demanding Applications

Some repairs face constant stress and movement. In these situations, a heavy duty thread repair kit delivers peace of mind. Big-Sert kits create a solid, locked fit that resists loosening. As a result, they perform well in engine blocks, head bolt holes, and other high-load areas. Additionally, the installation process remains straightforward when carried out step by step.

Choose the Right System for Your Repair

For minor damage, a standard insert may be suitable. However, when threads are badly worn or a prior insert has failed, Big Sert Thread Repair offers the correct upgrade. You can also explore our TIME-SERT® thread repair kits for standard applications. If you need replacements, view our TIME-SERT® metric inserts. Nevertheless, for oversized and heavy-duty repairs, Big-Sert kit and insert options provide a strong and lasting solution.

Specialist TIME-SERT® Repair Solutions

TIME-SERT® Oil Drain Plug Thread Repair
TIME-SERT® Spark Plug Thread Repair

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