E-Z Lok Expands E-Z Fin Range: New Brass Threaded Inserts

Smarter fastening Simplified installation, stronger threads: E-Z Lok adds new sizes to E-Z Fin insert range

2025-10-20 Source: E-Z Lok 1 min Reading Time

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With the latest expansion of its E-Z Fin range, E-Z Lok introduces new brass threaded inserts designed for smooth, cold press-in installation and long-lasting performance in soft wood, thermoplastics, and thermoset plastics.

E-Z Lok expands its E-Z Fin brass threaded inserts range, offering enhanced strength, stress distribution, and easy installation for soft woods, thermoplastics, and thermoset plastics.(Source: E-Z Lok) — E-Z Lok expands its E-Z Fin brass threaded inserts range, offering enhanced strength, stress distribution, and easy installation for soft woods, thermoplastics, and thermoset plastics.
(Source: E-Z Lok)

The E-Z Fin range of brass threaded inserts from E-Z Lok has been expanded to include new options for applications in soft wood, thermoplastics, and thermoset plastics. Also known as Finserts, they offer a blend of strength and precision for thermoset plastics. Designed with one, two or three OD fins that distribute stress over a greater surface area to minimize the possibility of cracking and protect against thread erosion, Finserts are available with internal thread sizes ranging from #6 to 5/16.

Finserts for thermoplastics are specifically designed to integrate seamlessly with thermoplastic components, ensuring a reliable bond that can withstand the demands of various applications.

Installation in thermoset plastics requires nothing more than a straightforward press-in action. The design ensures a smooth insertion process, making them ideal for a variety of applications.

Designed to be installed “cold”, the brass threaded inserts are pressed into placing using anything from a simple hand tool to an arbor press.

When used for thermoset plastics, their design significantly reduces the risk of damage like splintering, a common issue. These inserts are suitable for a wide range of applications within the thermoset plastic industry, from small-scale projects to large industrial uses.

The brass threaded inserts for thermoplastics ensure a secure, tight fit that significantly reduces the risk of thread stripping. In addition, Finserts are engineered to distribute load evenly, minimizing stress on the base material and extending the lifespan of the component. Their compatibility with a wide range of thermoplastics enhances design flexibility, enabling the use of lighter, more cost-effective materials without compromising strength.

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