E-Z Lok Externally Threaded Insert, C12L14 Carbon Steel, Meets AISI 12L14, 3/8″-16 Internal Threads, 1/2″-13 External Threads, 0.500″ Length, Made in US (Pack of 10)

Description

Product Overview

E-Z Lok externally threaded inserts are precision-engineered for repairing or reinforcing tapped holes in soft metals. Made from C12L14 carbon steel, these inserts meet AISI standards and deliver strong, self-locking performance without requiring special tools. Designed for aluminum, cast iron, magnesium, and other low-hardness materials, they offer a quick, reliable solution to thread damage or weak points. Each insert measures 0.500″ in length with internal 3/8-16 threads and external 1/2-13 threading. The product is manufactured in the USA and comes in packs of ten for convenient bulk use.

Usage

These inserts are ideal for industrial, mechanical, and DIY applications where thread integrity is critical but materials are soft or damaged. Common uses include repairing holes in aluminum frames, reinforcing tapped holes in cast iron machinery parts, or restoring threads on magnesium housings. They’re suitable for workshops, fabrication shops, automotive repair, and home improvement projects. Installation requires only a standard drill (29/64″), tap, and screwdriver — no specialized tools needed.

Why Choose Us

E-Z Lok inserts are trusted for their durability, ease of installation, and consistent performance across soft metals. Made from high-quality C12L14 carbon steel, they resist wear and maintain thread integrity under load. The self-locking design prevents loosening during use, while the simple tool requirement makes them accessible to both professionals and hobbyists. Manufactured in the USA with strict quality control, these inserts are backed by a reputation for reliability since their debut in 2009.

Key Features

• Strong C12L14 carbon steel construction ensures long-lasting performance and resistance to wear in soft metals.
• No special tools required — install with standard drill, tap, screwdriver, or E-Z Lok drive tool for quick repairs.
• Self-locking design prevents loosening during use, ideal for applications requiring consistent thread strength.
• Designed specifically for aluminum, cast iron, magnesium, and other low-hardness metals to prevent stripping or failure.
• Manufactured in the USA with consistent quality control; backed by positive customer reviews since 2009.

FAQ

What materials are these inserts compatible with?

E-Z Lok threaded inserts work best with soft metals such as aluminum, cast iron, magnesium, and other low-hardness alloys. They’re not recommended for high-strength or hardened steels.

Do I need special tools to install them?

No — standard tools like a drill (29/64″), tap, screwdriver, or bolt/jam nut are sufficient. No specialized equipment is required.

How many inserts come in each pack?

Each package contains 10 threaded inserts for convenient bulk use and cost-effective repairs.

What’s the thread size on these inserts?

The internal threads are 3/8-16, while external threads measure 1/2-13. The insert length is 0.500″ for optimal fit in standard holes.

Are these inserts suitable for heavy-duty applications?

Yes — they’re designed to handle moderate to heavy loads and repeated use, especially when installed correctly with standard tools. Their self-locking design ensures long-term reliability.