E-Z LOK Threaded Insert for Plastic 1/4-20 Tapered Brass 50pcs

Description

Product Overview

E-Z LOK has engineered a specialized threaded insert that meets the demanding requirements of modern plastic fabrication, offering a reliable 1/4-20 brass thread solution for a wide range of thermoplastic applications. The insert is constructed from high‑grade brass, providing excellent corrosion resistance and long‑term durability while maintaining the precise tolerances needed for repeatable, high‑strength fastening. Its tapered single‑vane geometry is specifically designed to engage securely with the surrounding polymer, creating a robust, reusable thread that can withstand repeated assembly and disassembly without loss of performance.

The design philosophy behind the E-Z LOK insert focuses on simplicity and efficiency. The tapered profile reduces the insertion force required, allowing technicians to install the component using either ultrasonic vibration or a conventional heat driver. This dual‑method capability means the insert can be deployed in both high‑volume production lines and low‑volume prototyping environments, delivering consistent results regardless of the installation technique. The brass material also offers superior electrical conductivity, making the insert suitable for applications where grounding or signal continuity is a consideration.

Key specifications include a compact 4 × 4 × 1 inch package size, a lightweight 4.16‑ounce net weight per pack of 50, and a model designation of TH‑420‑SV. The inserts are compatible with standard 1/4‑20 machine threads, enabling seamless integration with existing hardware such as bolts, screws, and fasteners commonly used in automotive, aerospace, and consumer‑product assemblies. The product’s best‑seller rank of #7 in Threading Inserts underscores its popularity among engineers and makers who require dependable thread creation in plastic components.

Performance testing has demonstrated that the E-Z LOK insert maintains torque values well above industry benchmarks, even after multiple cycles of tightening and loosening. This reliability is attributed to the precise machining of the brass threads and the optimized taper angle, which together distribute load evenly across the polymer matrix. Users report a noticeable reduction in installation time, with typical ultrasonic cycles completing in under two seconds, and heat‑driver cycles finishing within five seconds, depending on material thickness and thermal conductivity.

Usage

The E-Z LOK threaded insert is ideally suited for a variety of real‑world scenarios where durable, reusable threads are essential. In additive manufacturing, 3D‑printed parts often lack the strength needed for traditional metal fasteners; these inserts provide a straightforward retrofit solution, allowing designers to incorporate metal hardware directly into printed components without compromising structural integrity. For injection‑molded parts, the insert can be placed post‑molding, eliminating the need for complex mold designs that incorporate threaded features, thereby reducing tooling costs and lead times.

Installation is equally effective in repair contexts. When a plastic component suffers damage that compromises its original fastening points, a technician can drill a minimal pilot hole and then apply ultrasonic energy to embed the insert, restoring the part to its original functional state. This approach is frequently employed in the maintenance of consumer electronics, medical devices, and automotive interior panels, where downtime must be minimized and part replacement is costly.

Beyond industrial applications, hobbyists and makers benefit from the insert’s ease of use. The ability to install threads with a handheld ultrasonic tool or a simple heat gun makes the product accessible to users without specialized equipment. Whether building a custom drone frame, fabricating a robotic arm, or assembling a prototype enclosure, the insert provides a reliable anchoring point for screws, bolts, and other fasteners, enhancing the overall robustness of the final assembly.

Environmental considerations are also addressed. The brass composition is fully recyclable, and the insert’s long service life reduces the frequency of part replacement, contributing to lower material waste. Users operating in cleanroom or sterile environments appreciate the insert’s low outgassing properties, which help maintain the integrity of sensitive assemblies.

Why Choose Us

Choosing E-Z LOK means selecting a brand with a proven track record of delivering high‑performance fastening solutions across multiple industries. Our commitment to quality is reflected in rigorous testing protocols that evaluate each batch of inserts for dimensional accuracy, tensile strength, and corrosion resistance. This ensures that every insert you receive meets the exacting standards required for critical applications, from aerospace components to medical device housings.

Our inserts are backed by a comprehensive warranty and responsive customer support team that can assist with installation guidance, troubleshooting, and technical specifications. We understand that successful integration often hinges on expert advice, and our engineers are available to provide recommendations tailored to your specific material and design constraints. This level of service distinguishes E-Z LOK from generic competitors that may lack dedicated technical resources.

Manufacturing excellence is another cornerstone of our value proposition. The brass used in our inserts is sourced from reputable suppliers who adhere to strict environmental and ethical standards. Each insert undergoes precision CNC machining to achieve tight tolerances, and the final product is inspected using high‑resolution imaging systems to detect any surface imperfections that could affect performance.

In addition to product quality, we prioritize ease of procurement. Our packaging of 50 inserts per pack is optimized for both inventory management and cost efficiency, allowing bulk purchasers to benefit from volume pricing while still receiving manageable lot sizes for smaller projects. The clear labeling of model number TH‑420‑SV and comprehensive product data sheets further simplify the ordering process, reducing the risk of mismatched parts.

Finally, our dedication to continuous improvement drives ongoing research into new materials and insertion techniques. By staying at the forefront of fastening technology, E-Z LOK ensures that our customers always have access to the most advanced solutions available, reinforcing our reputation as a trusted partner in product development.

Key Features

• High‑grade brass construction delivers superior strength and corrosion resistance for long‑lasting threads.
• Tapered single‑vane design enables fast, low‑force installation with ultrasonic or heat‑driver tools.
• Standard 1/4‑20 thread size provides compatibility with a wide range of fasteners and hardware.
• Pack of 50 inserts offers cost‑effective supply for prototyping, production, and repair projects.
• Dedicated technical support and warranty ensure confidence and assistance throughout the product lifecycle.

FAQ

What materials can the E-Z LOK insert be used with?

The insert is designed for thermoplastic polymers such as ABS, polycarbonate, nylon, and PLA, as well as 3D‑printed composites. It works well with both injection‑molded and additively manufactured parts.

Can I install the insert without ultrasonic equipment?

Yes, the insert can also be installed using a conventional heat driver or a specialized heat gun. The tapered design reduces the required insertion force, making manual installation feasible for smaller parts.

Is the brass thread compatible with metric fasteners?

The supplied insert features an imperial 1/4‑20 thread. For metric applications, E‑Z LOK offers equivalent inserts in metric sizes; please consult our catalog for the appropriate part number.

How many installation cycles can the insert endure?

Testing shows that the insert maintains its torque rating for over 100 tightening and loosening cycles, making it suitable for applications that require frequent disassembly.

What warranty does E-Z LOK provide?

All inserts are covered by a one‑year limited warranty against material defects and manufacturing errors. Our support team is available to address any concerns during this period.