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Home / Connectors and Fasteners / 30/40 Galvanized Square Tube Iron Pipe Connector, Weld-Free Fastener, Wholesale

Attributes

Brand -
Category Industrial Small Parts / Connectors and Fasteners
Origin -
Material High-Strength Carbon Steel
Surface Treatment Hot-Dip Galvanized
Compatible Tube Size 30mm x 30mm / 40mm x 40mm Square Tube
Connection Type Bolted Clamp (No Welding Required)
Package Quantity 10 Pieces per Pack
Bolt Specification M8 Hex Bolts Included
Net Weight 1.8 kg per Pack
Color Metallic Silver
Recommended Application Shelving Units, Furniture Frames, Greenhouses
Warranty 1 Year Manufacturer Warranty

5 reviews

A

Anonymous

Apr 22, 2026

Rating: 4/5

Solid hardware

The bolts included are decent quality. The connectors themselves are heavy duty. Would buy again for future projects.

A

Anonymous

Mar 20, 2026

Rating: 5/5

Saved me so much time

I was dreading welding the frame for my greenhouse. These connectors worked perfectly and saved me hours of work.

A

Anonymous

Mar 10, 2026

Rating: 5/5

Strong and Reliable

Used these for a workbench frame. They hold the weight without any wobble. Great alternative to welding.

A

Anonymous

Mar 02, 2026

Rating: 4/5

Good quality, tight fit

The galvanization looks durable. The fit on the 40mm tube is very tight, which is good for stability but requires some effort to assemble.

A

Anonymous

Feb 14, 2026

Rating: 5/5

Perfect for DIY Shelving

These connectors made building my warehouse shelving unit so much easier. No need to weld, just tighten the bolts. Very sturdy.

5 FAQ

Q: Do I need any special tools for installation?

A: No special tools are required. A standard wrench or socket set that fits M8 bolts is sufficient for installation.

Q: Can I get a discount for bulk orders?

A: Yes, we offer wholesale pricing for large quantities. Please contact our sales team directly for a quote.

Q: Is this suitable for outdoor use?

A: Yes, the hot-dip galvanized finish provides excellent rust resistance, making it suitable for outdoor applications like greenhouses.

Q: What is the return policy if the size is wrong?

A: We accept returns within 30 days if the item is unused and in original packaging. Please check tube dimensions before ordering.

Q: Will this fit a 40mm x 40mm square tube exactly?

A: Yes, this connector is specifically designed to fit standard 40mm x 40mm square tubes securely.

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