Stainless Steel & Zinc Alloy Pipe Connector | Heavy-Duty Screw-Fixation Utility Metal Frame Joint (19mm, 22mm, 25mm, 32mm ID) - Atradesen

Premium Metal Symmetrical Pipe Connectors (Stainless Steel & Zinc Alloy)

Construct robust, customized metal frameworks and commercial display racks with our premium metal pipe connector joints, available at Atradesen.com. Engineered with a highly efficient set-screw fixation system, these high-strength couplers allow you to build, extend, and dismantle rigid pipe assemblies quickly without the need for complex welding, glue, or threaded pipe-cutting.

Available in eight distinct branching configurations, this metal joint series provides a seamless mechanical connection for structural pipe frames in home wardrobes, retail hangers, outdoor greenhouses, and heavy-duty storage racks.

Heavy-Duty Materials Configured by Diameter

To deliver maximum load-bearing integrity and environmental resistance across standard pipe sizing, our connector series utilizes two premium metal compositions:

• Marine-Grade Stainless Steel (19mm, 25mm, and 32mm Inner Diameters): Formulated for maximum resistance to rust, oxidation, and corrosion. Recommended for damp environments, coastal areas, or outdoor structural piping.
• High-Tensile Zinc Alloy (22mm Inner Diameter): Features outstanding structural toughness and precision casting tolerances, making it highly suitable for domestic closet organizing systems and indoor display shelving.

Integrated Set-Screw Fixation & Flexible OD Tolerance

These utility couplers lock onto pipes using integrated set screws. Because the set screw exerts strong localized clamping pressure to secure the pipe, the connection allows a helpful dimensional tolerance clearance. If your tubing has slight caliper deviations, it will still lock securely:

• 19mm ID Fitting: Comfortably grips any rigid round pipe with an Outer Diameter (OD) of 18mm to 19.5mm.
• 22mm ID Fitting: Comfortably grips any rigid round pipe with an Outer Diameter (OD) of 21mm to 22.5mm.
• 25mm ID Fitting: Comfortably grips any rigid round pipe with an Outer Diameter (OD) of 24mm to 25.5mm.
• 32mm ID Fitting: Comfortably grips any rigid round pipe with an Outer Diameter (OD) of 31mm to 32.5mm.

⚠️ Tube Compatibility & Brittle Surface Warning

• Wide Tube Compatibility: Suitable for clamping rigid round pipes made of wood, carbon steel, copper, aluminum, heavy PVC/PPR plastics, and dense vulcanized rubber.
• Fragile Surface Warning: Because the set screws must slightly bite into or mar the surface of the tube to ensure a slip-free mechanical hold, these connectors are strictly not suitable for fragile or brittle materials, such as glass, thin acrylic, or delicate ceramics.

Technical Specifications

Frequently Asked Questions (FAQ)

Q: Why is the 22mm model made of zinc alloy while other sizes are stainless steel?

A: G22mm is the international standard tubing size for standard household wardrobes and clothing hanger racks. Zinc alloy is selected for this specific size because it offers excellent casting detail, beautiful plating finish, and high structural toughness under indoor vertical hanging loads at a highly cost-effective value.

Q: Will the set screw scratch the surface of my metal pipes during installation?

A: Yes. The set screw is designed to apply direct mechanical pressure onto the pipe surface to lock it into position. This leaves a small dimple or scratch mark on the pipe surface where the screw contacts it. This mechanical bite is necessary to prevent the joint from slipping under load, which is why brittle materials like glass cannot be used.