PATIKIL Thread Inserts 1/4-20 UNC 2.5D 16mm 20Pcs 304 Stainless Steel

Description

Product Overview

Introducing the PATIKIL Thread Inserts designed specifically for the 1/4-20 UNC thread size, a critical component for maintaining the integrity of mechanical assemblies across a wide range of industries. Each insert measures 2.5D (16mm) in effective length after installation, providing ample engagement depth to secure fasteners under demanding conditions. Constructed from premium 304 stainless steel, these inserts deliver exceptional corrosion resistance, ensuring long‑term performance even in harsh environments such as automotive under‑hood applications, marine equipment, and industrial machinery.

The helical design of the wire thread insert offers a unique combination of elasticity and strength. The coiled wire structure distributes load evenly along the thread profile, reducing stress concentrations that can lead to premature failure. This elasticity also grants the insert a degree of vibration damping, which is especially valuable in applications where constant motion or shock loads are present. With a packing list of 20 pieces per box, users receive a ready‑to‑install solution that minimizes downtime and eliminates the need for costly re‑machining of components.

Key specifications include a drilling diameter of 6.7mm, a recommended tap size that matches the 1/4-20 UNC thread, and a silver‑tone finish that blends seamlessly with most hardware aesthetics. The inserts are supplied in a compact, lightweight package measuring 0.63 x 0.26 x 0.63 inches and weighing only 1.28 ounces, making storage and handling effortless for workshop environments.

Usage

These inserts are engineered for versatility. Whether you are restoring a stripped screw hole in a vehicle engine block, reinforcing a threaded hole in a CNC machine, or repairing a damaged fastener in aerospace equipment, the PATIKIL Thread Inserts provide a reliable fix. The installation process is straightforward: begin by drilling a hole to the specified 6.7mm diameter, then use a matching ST tap to cut threads that correspond precisely to the insert’s dimensions. Once the tap is complete, the insert is placed onto a dedicated installation tool, allowing you to control insertion depth and ensure a flush finish.

Because the inserts are made from 304 stainless steel, they are suitable for environments where exposure to moisture, chemicals, or temperature fluctuations is common. This makes them an ideal choice for automotive repair shops, marine vessel maintenance, and industrial facilities where equipment is subject to regular wear and tear. The 20‑piece quantity per package also supports batch repairs, enabling technicians to address multiple threaded holes in a single maintenance session, thereby improving productivity and reducing overall repair costs.

When selecting the appropriate insert, it is essential to verify that the screw size matches the threaded hole to avoid over‑tightening, which could damage the insert or the surrounding material. Proper torque application during installation ensures optimal performance and longevity of the repaired thread.

Why Choose Us

PATIKIL has built a reputation for delivering high‑quality fastener solutions that meet rigorous industry standards. Our thread inserts undergo a meticulous manufacturing process that includes precision coiling, heat treatment, and surface finishing to guarantee consistent thread geometry and superior mechanical properties. The use of 304 stainless steel not only provides excellent corrosion resistance but also offers high tensile strength, making our inserts capable of withstanding substantial axial loads.

Customer satisfaction is at the core of our business philosophy. We provide comprehensive technical support, detailed installation instructions, and responsive after‑sales service to assist users throughout the product lifecycle. Our commitment to quality is reflected in the product’s five‑star rating and the positive feedback from professionals who rely on PATIKIL inserts for critical repair tasks.

In addition to product durability, we prioritize environmental responsibility. The stainless steel material is fully recyclable, and our packaging is designed to minimize waste, aligning with sustainable manufacturing practices.

Key Features

• Corrosion‑resistant 304 stainless steel ensures long‑lasting durability in harsh environments.
• Helical wire design provides elastic load distribution, reducing stress and preventing thread failure.
• Easy installation with a 6.7mm drill size and matching tap simplifies repair procedures.
• Pack of 20 inserts offers cost‑effective batch repairs for automotive and industrial applications.
• Dedicated technical support and after‑sales service guarantee reliable assistance whenever needed.

FAQ

What material is used for these thread inserts?

The inserts are made from 304 stainless steel, which offers excellent corrosion resistance and high tensile strength, making them suitable for a wide range of applications.

Can these inserts be used for non‑metallic substrates?

While they are optimized for metal components, the helical design can also be applied to hardened plastics or composite materials, provided the drilling and tapping steps are performed with care to avoid cracking.

How do I determine the correct drill size?

The recommended drill diameter for the 1/4-20 UNC insert is 6.7mm. Using this size ensures proper thread engagement and optimal load distribution.

Is there a risk of over‑tightening the insert?

Yes. Over‑tightening can damage the insert or the surrounding material. It is important to follow the torque specifications provided in the installation guide and to stop when the insert seats flush with the surface.

Do you offer any warranty on these inserts?

All PATIKIL Thread Inserts come with a limited warranty against manufacturing defects. For detailed warranty terms, please contact our customer service team.