8Pcs Square Tubing Insert Metal Threaded Star 1/4-20 for 19mm OD 1.5mm

Description

Product Overview

The 8Pcs Square Tubing Insert from Micro Traders is engineered to meet the demanding requirements of industrial and scientific applications where precision, durability, and ease of installation are paramount. Constructed from high‑grade metal alloy, each insert offers superior compressive strength and outstanding resistance to corrosion, making it suitable for harsh environments ranging from workshop floors to outdoor construction sites. The star‑type configuration, combined with a 1/4‑20 thread profile, provides a secure and repeatable fastening solution that aligns perfectly with standard screw sizes. Designed specifically for square tubes with an outer diameter of 19 mm and a wall thickness of 1.5 mm, the insert fits tightly without the need for additional adjustments, ensuring a seamless integration into existing structures.

Technical specifications include a package of eight inserts per set, each weighing approximately 2.82 ounces, and packaged dimensions of 3.54 x 3.15 x 0.71 inches. The product is identified under part number 253‑BS and model BS253‑G, and it holds a competitive position in the market, ranking #24 in Threading Inserts within the Industrial & Scientific category on major e‑commerce platforms. The design incorporates an internal plum‑flower spring that enhances the grip between the nut and the tube, reducing the risk of loosening under vibration or load.

Usage

These inserts are ideally suited for a wide range of applications where a reliable connection between components is essential. In furniture manufacturing, they provide a sturdy anchor point for frame assemblies, drawer slides, and adjustable shelving systems. Outdoor equipment manufacturers benefit from the insert’s corrosion‑resistant properties, using them to secure brackets on camping gear, portable shelters, and modular outdoor furniture. The robust metal construction also makes the inserts an excellent choice for industrial machinery, where they can be employed to attach protective guards, sensor housings, or custom tooling to square‑tube frames.

Installation is straightforward: the insert is pressed into the pre‑drilled square tube until it seats firmly, after which a standard 1/4‑20 screw can be threaded into the star‑type cavity. This simplicity reduces assembly time and minimizes the need for specialized tools, allowing technicians and DIY enthusiasts alike to achieve a professional‑grade connection with minimal effort. The inserts perform reliably under dynamic loads, making them suitable for applications that experience frequent movement or vibration, such as portable workstations, mobile racks, and modular scaffolding systems.

Why Choose Us

Choosing Micro Traders means selecting a partner committed to quality, consistency, and customer satisfaction. Our inserts undergo rigorous testing to verify thread integrity, material hardness, and dimensional accuracy, ensuring each unit meets exacting standards before it reaches the customer. The star‑type design is a proprietary feature that delivers superior torque transfer compared to conventional flat‑head inserts, reducing the likelihood of thread stripping and extending the service life of both the insert and the mating hardware.

We stand behind our products with a responsive after‑sales support team ready to assist with technical inquiries, installation guidance, and warranty claims. Our commitment to continuous improvement drives us to incorporate feedback from field applications into future product iterations, guaranteeing that our customers receive the most reliable and up‑to‑date solutions available on the market.

Key Features

• Robust metal star‑type design delivers a secure, high‑torque connection.
• 1/4‑20 thread matches standard screws for easy installation and replacement.
• Fits 19 mm OD square tubes with 1.5 mm wall thickness without additional adjustments.
• Internal plum‑flower spring ensures firm grip and reduces loosening under vibration.
• Comprehensive customer support and warranty for peace of mind.

FAQ

What material is the insert made from?

The insert is fabricated from a high‑grade steel alloy that provides excellent compressive strength and corrosion resistance, suitable for both indoor and outdoor applications.

Can the insert be used with tubes of different sizes?

While the insert is optimized for 19 mm outer‑diameter tubes with a 1.5 mm wall, it can accommodate slight variations in size, but performance may be reduced if the tube dimensions differ significantly.

Is any special tool required for installation?

No special tools are needed. The insert is pressed into the pre‑drilled square tube, and a standard 1/4‑20 screw is used to secure it, making the process quick and straightforward.

How many inserts are included in the package?

Each package contains eight (8) inserts, providing enough units for multiple projects or bulk inventory needs.

What warranty does Micro Traders offer?

Micro Traders provides a one‑year limited warranty covering material defects and workmanship, backed by responsive customer service for any issues that arise.