A
Anonymous
Apr 03, 2026
Rating: 5/5
Sturdy connector
Used these for a shelving unit. They hold weight well without slipping.
Description
This external connector joins square stainless steel tubes to create extended structural frames for shelving or railing systems. Crafted from durable stainless steel, the clamp features a square tube design with a 25MM extension capacity and secures firmly onto tubing with diameters of 20MM or 30MM. Sold as a pair, these connectors provide a stable link for constructing custom metal frameworks. Ensure tubes are clean and dry before tightening the clamp to maintain a secure hold.
Reviews
Attributes
| Brand | - |
| Category | Industrial Small Parts / Connectors and Fasteners |
| Origin | - |
| Material | Stainless Steel 304 |
| Surface Finish | Brushed Silver |
| Compatible Tube Size | 20mm to 30mm |
| Coupler Diameter | 25mm |
| Package Contents | 2 Couplers |
| Fastener Type | Set Screw |
| Tool Required | Allen Key (Included) |
| Load Capacity | Up to 50kg per pair |
| Corrosion Resistance | High (Indoor/Outdoor) |
| Manufacturer | Hujian |
5 reviews
A
Anonymous
Mar 16, 2026
Rating: 5/5
Perfect fit for my rack
Solid steel and fits my 25mm tubes perfectly. Very happy with the purchase.
A
Anonymous
Mar 15, 2026
Rating: 3/5
Size confusion
Thought it was for 25mm only but works for a range. Just read description better.
A
Anonymous
Feb 05, 2026
Rating: 4/5
Good quality but tight
Quality is great but the screws were a bit hard to tighten initially.
A
Anonymous
Jan 28, 2026
Rating: 5/5
Excellent hardware
Brushed finish looks professional. No rust after months in garage.
5 FAQ
Q: Can I use this outdoors?
A: Yes, the stainless steel is corrosion resistant.
Q: What is the maximum weight limit?
A: We recommend up to 50kg per pair for safety.
Q: Will this work on 22mm tubes?
A: Yes, it accommodates tubes between 20mm and 30mm.
Q: Is the Allen key included?
A: Yes, each package comes with the necessary tool.
Q: Does it scratch the tube?
A: It may leave minor marks due to metal grip.
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