3D preview of Square Threaded Tube Insert Plug
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Interactive 3D model of Square Threaded Tube Insert Plug

Mechanical parts

Square Threaded Tube Insert Plug

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Bounding box
20.0 × 20.0 × 25.8 mm
Engine
Precision B-rep
Parameters
16
Published
October 13, 2026

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The prompt

A precise industrial 3D CAD model of a square threaded tube insert plug. The main body is made of matte black plastic. The top features a flat 20x20 mm square cap. Extending below this cap is a slightly smaller square shaft with multiple horizontal flexible ribs (lamellas) designed for a friction fit inside a metal tube. In the exact dead center of the top square face, there is an embedded metallic M6 hexagonal nut (shiny brass or silver steel) with a threaded hole. High detail industrial hardware component, clean geometry, studio lighting.

Parameters

NameValueRange
Cap Size (square)20 mm10 – 60
Cap Thickness3 mm1.5 – 10
Cap Corner Radius1.5 mm0 – 3
Shaft Size (square)18 mm6 – 55
Shaft Length22 mm6 – 80
Insertion Chamfer0.8 mm0 – 3
Rib Count4 pcs0 – 12
Rib Thickness1.2 mm0.5 – 4
Rib Outer Size (square)19.4 mm6 – 58
Rib Flank Chamfer0.4 mm0 – 1
Bottom Rib Offset3 mm2 – 15
Top Rib Offset (from cap)3 mm2 – 15
Nut Width Across Flats10 mm5 – 24
Nut Height5 mm2 – 15
Nut Proud Of Cap0.8 mm0 – 3
Thread Hole Diameter5 mm2 – 16

Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.

Square Threaded Tube Insert Plug - Free CAD Model (STEP, STL) | TextoCAD