Product Overview
These square tube end caps are precision-engineered to finish 20x20mm aluminum square tubes with a clean, professional seal—ideal for modular shelving, display stands, wardrobe frames, and custom-built partitions. Unlike generic plugs or adhesive solutions, our snap-in square tube end caps feature dual-material construction: durable anodized aluminum sleeves paired with resilient black and white ABS/PP caps that grip securely without tools or glue. Designed specifically for standard 20x20mm profiles, they ensure consistent alignment, eliminate sharp edges, and preserve structural integrity while enhancing aesthetics. Whether used in residential closets, retail kiosks, or contract furniture installations, these square tube end caps deliver both functional protection and visual polish—making them a must-have detail for designers prioritizing fit, finish, and reliability.
Key Features
- Snap-fit ABS/PP end caps in matte black and white—no screws, adhesives, or installation tools required
- Compatible exclusively with 20x20mm square aluminum tubes for precise, wobble-free seating
- Anodized aluminum outer sleeve adds corrosion resistance and subtle metallic contrast
- Protects tube ends from dents, dust ingress, and accidental impact during handling or assembly
- Enables quick disassembly and reusability—ideal for flat-pack, rental-ready, or upgradable furniture systems
Specifications
| Model / Part Number | U01GZ003 |
|---|
Applications
These square tube end caps shine where precision meets practicality: finishing exposed frame ends on open-concept wardrobes, supporting lightweight retail displays, capping vertical supports in DIY room dividers, and sealing structural members in wall-mounted shelving kits. They’re especially favored by makers building minimalist closet organizers, pop-up shop fixtures, and ergonomic home office workstations—anywhere a 20x20mm square tube forms the backbone of the design. Their low-profile fit ensures seamless integration with panel connectors, corner brackets, and linear extrusion systems—without adding bulk or compromising modularity.
Why Choose UKLinkHardware
We manufacture square tube end caps to ISO 9001-certified tolerances, with 98% on-time delivery across global OEM orders. Every U01GZ003 batch undergoes dimensional verification and snap-force testing—ensuring consistent retention across temperature and humidity variations. We support private labeling, custom color matching (Pantone/Munsell), and small-batch prototyping. All units comply with REACH and RoHS standards, and our aluminum components carry full anodizing certification traceability.
FAQ
Do these square tube end caps fit other sizes like 25x25mm or 15x15mm?
No—they’re engineered specifically for 20x20mm square aluminum tubes. The internal geometry and snap-lip tension are calibrated only for this profile; using them on non-matching sizes may cause poor retention or damage.
Can I use them on painted or powder-coated tubes?
Yes, but ensure the tube’s outer surface is smooth and free of texture or overspray buildup near the end—rough finishes can interfere with the cap’s sealing lip and reduce grip.
Are replacement caps sold separately?
Yes—we offer black and white ABS/PP caps individually under part numbers U01GZ003-BLK and U01GZ003-WHT for field repairs or color-mixing projects.
Do they withstand outdoor exposure?
While the anodized sleeve resists weathering, the ABS/PP material is rated for indoor use only. Prolonged UV exposure may lead to gradual discoloration or reduced elasticity.