Description
Product Overview
The EZ Lok SK30920 Helical Threaded Insert Kit is engineered for precision repair of damaged or worn threads in a variety of soft metals. Constructed from 304 stainless steel, each insert offers exceptional corrosion resistance and can tolerate temperatures up to 800°F, making it suitable for demanding industrial environments. The kit includes ten 5/16″-24 helical inserts, each with a 0.625″ installed length, providing a robust thread profile that restores original strength and torque capacity.
Every component in the kit is selected to streamline the installation process. The stainless steel coil inserts are pre‑formed to match the 5/16″-24 thread specification, eliminating the need for custom winding. Accompanying tools include a high‑speed steel drill bit sized for the pilot hole, an STI‑tap for cutting the internal thread, a dedicated installation tool that ensures proper insertion depth, and tang break tools to remove the insertion tang after the coil is set. This comprehensive set reduces the number of separate purchases a technician would otherwise need.
Designed for compatibility with common soft metals such as aluminum, cast iron, magnesium, and certain alloys, the kit delivers a reliable solution for aerospace components, automotive parts, marine hardware, and general machinery. The helical design distributes load across the entire insert length, reducing stress concentrations and extending the service life of the repaired component. With a best‑in‑class thread engagement ratio, the repaired threads can handle the same loads as original factory‑cut threads.
Dimensions of the packaged kit are compact—8.9 x 5.3 x 1.3 inches—allowing easy storage in toolboxes or on workbenches. The lightweight construction (approximately 0.01 ounces per insert) ensures that the kit adds minimal weight to the overall assembly, an important factor in applications where balance and weight distribution are critical. The product’s ASIN B0092QUD9Q and its ranking as #58 in Helical Threaded Inserts reflect its popularity among professionals seeking dependable thread repair solutions.
Usage
When a thread becomes stripped, cross‑threaded, or otherwise compromised, the SK30920 kit enables a quick restoration without the need for complete part replacement. The process begins by drilling a pilot hole to the recommended diameter, followed by tapping the hole with the included STI‑tap to create the proper thread profile. The helical insert is then driven into the tapped hole using the installation tool, which guarantees consistent depth and alignment.
This kit excels in environments where downtime must be minimized. For example, aircraft maintenance crews can repair stripped fastener holes on wing brackets or engine mounts in the field, restoring structural integrity without removing the component from the aircraft. Automotive technicians can address worn engine block threads, allowing for the reuse of original bolts and avoiding costly re‑machining. In marine applications, the corrosion‑resistant stainless steel inserts protect against saltwater exposure, extending the lifespan of repaired connections.
Because the inserts are designed for soft metals, the installation torque is lower than that required for harder alloys, reducing the risk of over‑tightening. The tang break tools included in the kit allow the installer to cleanly remove the insertion tang after the coil is fully seated, leaving a smooth interior surface that matches the original thread geometry. This makes the repaired part ready for immediate re‑assembly and load testing.
Why Choose Us
EZ Lok has a long history of delivering high‑quality fastening solutions, and the SK30920 kit reflects that commitment to durability and performance. Each stainless steel insert undergoes rigorous testing to verify tensile strength, corrosion resistance, and dimensional accuracy, ensuring that the repaired threads meet or exceed OEM specifications. The kit’s comprehensive nature means you receive every tool required for a complete repair, eliminating the need to source additional components from multiple suppliers.
Our customer support team is trained to assist with technical questions, installation guidance, and post‑sale service. Whether you are a seasoned maintenance professional or a hobbyist tackling a DIY project, you can rely on prompt responses and detailed documentation to achieve successful repairs. Additionally, the kit is backed by a satisfaction guarantee, reinforcing our confidence in the product’s reliability.
Choosing the EZ Lok SK30920 kit also means benefiting from a proven track record. With a 4.4‑star rating from 40 verified customer reviews, users consistently praise the kit’s ease of use, the quality of the stainless steel inserts, and the completeness of the included tools. This positive feedback underscores the kit’s suitability for both routine maintenance and critical repair tasks across a wide range of industries.
Key Features
- Helical stainless steel inserts restore thread strength in soft metals quickly and reliably
- Complete tool set includes drill, STI‑tap, installation tool, and tang break tools for a one‑stop solution
- 304 stainless steel construction resists corrosion and endures temperatures up to 800°F
- Designed for 5/16″‑24 thread size with 0.625″ installed length, matching common industry standards
- Dedicated customer support and satisfaction guarantee provide peace of mind after purchase
FAQ
What types of metals can I use this kit on?
The kit is optimized for soft metals such as aluminum, cast iron, magnesium, and similar alloys. It works well on any material where a helical insert can be tapped without excessive torque.
Do I need any special equipment beyond what is included?
No. The kit contains a drill bit sized for the pilot hole, an STI‑tap for cutting the thread, an installation tool to seat the insert, and tang break tools to remove the insertion tang. A standard torque wrench is sufficient for final tightening.
How many inserts are in the pack?
The package contains ten helical inserts, each sized for a 5/16″‑24 thread with a 0.625″ installed length, providing enough material for multiple repairs or a larger project.
Can the inserts be reused if a repair fails?
Because the inserts are permanently deformed into the tapped hole, they are not intended for removal and reuse. If a repair fails due to improper installation, the hole can be re‑tapped to a larger size and a new insert installed.
Is the kit suitable for high‑temperature applications?
Yes. The 304 stainless steel inserts are rated for temperatures up to 800°F, making the kit appropriate for applications where heat exposure is a concern, such as engine components or exhaust system repairs.
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