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Heavy-duty connectors are used for connecting tubing without welding. Heat-treated clips hold securely. Connectors are available for the following tubing Outer Diameter Size. Most fit 16 gauge tubes.
Unit of Measure


Fitting Tube Thickness

N/A 16 gauge18 gauge

Tube Outer Diameter

N/A 7/8 in

Thread Size

N/A 1/4 in - 20 3/8 in - 16 5/16 in - 18
Level GlidesLevel Glides
Adjustment KnobsAdjustment Knobs
Metal Threaded Adapters and Tube ConnectorsMetal Threaded Adapters and Tube Connectors
Plastic Components and Tube ClosuresPlastic Components and Tube Closures
Seating ComponentsSeating Components
Polyurethane MoldingPolyurethane Molding
Fixture and Display ComponentsFixture and Display Components

MDI manufactures and distributes quality products including industrial and furniture casters, industrial and office furniture glides and levelers, tube closures, tube connectors, adapters, plastic and metal hardware components. We also stock and offer wide array of adjustments knobs and seating components (bases, arms, foam, wood). We can produce polyurethane molded parts along with custom injection molded parts specific to your needs.