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Home / Assemblies and Fasteners / Square Tube Connector Weld-Free Fixing Clip 20/25/30/40 Galvanized Cast Iron Connector Square Steel Fixer

Attributes

Brand -
Category Standard Parts, Components & Industrial Consumables / Assemblies and Fasteners
Origin -
Material Galvanized Cast Iron
Compatible Tube Sizes 20mm, 25mm, 30mm, 40mm
Installation Type Weld-Free Bolted Connection
Surface Finish Hot-Dip Galvanized
Load Capacity Heavy Duty Structural Grade
Corrosion Resistance High (Outdoor Suitable)
Package Contents Connector Clips and Mounting Bolts
Application Fencing, Railing, Shelving Frames
Color Metallic Silver
Country of Origin Manufactured to International Standards

6 reviews

A

Anonymous

Mar 13, 2026

Rating: 4/5

Good product, instructions could be better

The clips themselves are fantastic quality. My only complaint is the lack of detailed torque specifications in the packaging. I had to look up standard values online. Otherwise, great product.

A

Anonymous

Mar 13, 2026

Rating: 5/5

Exactly as described

Ordered the 25mm size and they fit my tubing spot on. The galvanization is thick and even. Good value for money compared to buying custom welded parts.

A

Anonymous

Mar 12, 2026

Rating: 5/5

Perfect for my garden fence project

These connectors made assembling my square tube fence incredibly easy. No welding needed, just bolt them on. The galvanized finish looks durable and should last through the winter.

A

Anonymous

Mar 08, 2026

Rating: 5/5

Excellent industrial grade fixer

Used these for a warehouse shelving unit. The weld-free design saved us hours of labor. Very tight fit with no wobble once tightened. Highly recommended for DIY or pro use.

A

Anonymous

Mar 08, 2026

Rating: 4/5

Sturdy but heavy

Great quality cast iron. They are quite heavy which gives me confidence in their strength, but make sure you have help when installing larger structures. Fits the 30mm tubes perfectly.

A

Anonymous

Mar 05, 2026

Rating: 5/5

Saved me so much time

Building a railing for my deck was daunting until I found these. The ability to adjust angles slightly before final tightening was a lifesaver. Solid construction.

5 FAQ

Q: Can these be used outdoors in coastal areas?

A: The hot-dip galvanized finish offers high corrosion resistance suitable for most outdoor environments. However, in harsh coastal areas with high salt spray, we recommend applying an additional protective wax or paint layer for extended longevity.

Q: Is it possible to disassemble and reuse these clips?

A: Yes, one of the main advantages of this weld-free system is reusability. You can unbolt the clips and move them to a new location as long as the bolts and threads remain undamaged.

Q: What size wrench do I need for installation?

A: Most of our kits come with standard metric bolts. Typically, a 13mm or 17mm socket or open-ended wrench is required, depending on the specific tube size kit you purchased. Please check the included hardware list.

Q: Do you sell the matching end caps for these tubes?

A: We do sell compatible end caps separately. Please visit our 'Accessories' section and filter by your tube size to find the correct galvanized end caps for a finished look.

Q: Do these connectors work with aluminum square tubes?

A: Yes, they are compatible with aluminum tubes provided the outer dimensions match the specified sizes (20/25/30/40mm). However, ensure you use stainless steel bolts to prevent galvanic corrosion between the cast iron and aluminum.

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