20х20mm Square Domed Insert Cap (Black)
Description
Description
Key Features
- Perfect Fit for 20mm Square Tubes
Designed for profile pipes with external dimensions 20x20mm and wall thickness 0.8–1.5mm
- Strong Internal Grip
Ribbed insert ensures a tight, secure fit without slipping or falling out
- Protects Floors & Surfaces
Ideal for furniture legs — prevents scratches, dents, and wear on flooring
- Seals & Protects Tubes
Keeps out moisture, dirt, and debris, extending the life of your tubing
- Safe Rounded Dome Design
Covers sharp edges to reduce risk of injury
- Clean, Professional Finish
Subtle black colour blends seamlessly into most designs
Product Description
Finish your project the right way with this 20mm square domed insert cap, designed for a clean look and long-lasting protection.
This internal plastic insert fits securely inside square tubes thanks to its flexible ribbed base, creating a firm hold without the need for tools. Once installed, it protects the inside of the tube from dust, moisture, and debris, helping to extend its lifespan.
The domed (rounded) top with textured finish not only improves safety by covering sharp edges, but also enhances the overall appearance of your product. When matched correctly, the cap blends in and becomes almost invisible.
Perfect for use in furniture, metal structures, gym equipment, fencing, and DIY projects, this insert is a small detail that makes a big difference.
Specifications
- Type: Square Tube Insert (Internal)
- Size: 20x20 mm
- Top Shape: Domed (textured finish)
- Material: Durable Plastic
- Colour: Black
- Head Thickness: 5.5 mm
- Insert Depth: 13.5 mm
- Wall Thickness Compatibility: 0.8 – 1.5 mm
- Installation: Push-fit
Compatibility Guide
To ensure proper fit:
- Tube external size must be 20x20 mm
- Wall thickness should be 0.8 – 1.5 mm
Applications
- Furniture (chairs, tables, stools)
- Shelving & racking systems
- Gym & sports equipment
- Fencing & railings
- Advertising structures
- Playground equipment
Quality & Durability
Manufactured from high-quality, durable plastic, these inserts are built to last.
They are resistant to wear, provide a firm hold, and maintain their shape under regular use.
Let customers speak for us
Excellent service came with in a couple of days
Fitted perfectly and nice and solid.
Super fast delivery huge range so found my size easily.They fit perfectly. So glad to have found this business. Definitely recommend
Great pipe bungs as 57mm is a difficult size to find.
Good communication. Items delivered very quickly and arrived in good condition. Would definitely usethese people again .
Good value product and particularly helpful to have a few at slightly different sizes as it is not easy to choose an exact measurement on line. I did get one of the small range to fit perfectly - as expected
Order arrived in good time and condition
Perfect for the project I had on some metal furniture
Good quality end caps. Tight fitting and good expansion for grip.
Excellent service and product
The square end caps are very good quality, reasonable priced and delivery was quick.
