Square Threaded Tube Inserts

Square Threaded Tube Inserts are robust end caps designed for insertion into the ends of square tubes, pipes, and box sections. These inserts provide a secure internal thread, allowing for the attachment of external components such as adjustable feet, castor wheels, and machine levelling mounts. Manufactured from high-quality materials including LDPE plastic, reinforced nylon, and heavy-duty steel, these inserts ensure long-lasting performance and a tight, stable fit.

Available in a range of thread sizes from M6 to M20, our Square Threaded Inserts are an essential solution for industries requiring secure, adjustable connections. Whether used in furniture manufacturing, construction, or industrial frameworks, these inserts offer a cost-effective and efficient method to add functionality to tubular structures.

How to Select the Right Square Threaded Tube Insert

To choose the correct size of square insert for your application, you need to measure the Outside dimensions and the wall thickness of your square tube. Our inserts are designed with flexible push to fit ribs that allow them some leeway when fitting tube sizes. Follow these steps to determine the right size:

• Measure the Outside dimensions of your square tube.
• Measure the Wall thickness of your square tube.
• Subtract the Wall thickness measurement from the Outside dimensions value.
• Choose an insert with a "To Fit Tube" size range matching your value.
• Select the correct thread size (M6-M20) based on your required attachment component.
• If unsure, request a free product sample or contact our support team for guidance.

Key Product Features

• Manufactured from LDPE, nylon, or heavy-duty steel for different load capacities.
• Integrated metal threads (M6 to M20) for secure external attachments.
• Ribbed design ensures a firm fit and prevents loosening over time.
• Ideal for use with machine feet, castor wheels, and adjustable levelling components.
• Available in multiple sizes to fit square tubes from 19mm to 60mm.

Types of Square Threaded Tube Inserts

Square Plastic Threaded Tube Inserts

These lightweight yet durable inserts are made from LDPE, offering a cost-effective solution for applications with moderate load-bearing requirements. Ideal for furniture, office equipment, and light industrial use.

Square Metal Threaded Tube Inserts

Designed for more demanding applications, these inserts feature a robust metal thread housed within a reinforced nylon body. They provide greater durability and load capacity, making them suitable for heavy-duty furniture, construction frameworks, and machinery supports.

Square Threaded Heavy-Duty Tube Inserts

Our heavy-duty range is designed for the most demanding environments. Constructed from solid steel with a reinforced metal thread, these inserts withstand high loads, impact, and prolonged use. Ideal for industrial applications requiring superior strength and stability.

Common Applications

• As end fittings for square tubes in furniture and shop fittings.
• For securing adjustable feet or levelling mounts to metal frameworks.
• Used in industrial and manufacturing environments to connect tubing securely.
• As an attachment point for castors or glides in shelving and storage systems.
• To reinforce and protect the ends of square tubes from damage and wear.

Contact Us for Expert Advice

Unsure which Square Threaded Tube Insert is right for your project? Our expert team is here to help. Call us today on 01233 713 581 for professional guidance, or request a free sample to test fitment before purchasing.