Enclosures and housings
BSPT R1/2 Tapered Screw Shaft
- Bounding box
- 24 × 24 × 41.5 mm
- Engine
- 3D Printing B-rep
- Parameters
- 10
- Published
- November 12, 2026
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The prompt
Create a cylindrical screw shaft with an external tapered pipe thread R 1/2 BSPT. Total thread length is 25 mm, major diameter is 20.95 mm, taper is 1:16 tapering narrower toward the front tip, thread pitch is 1.814 mm, and thread angle is 55 degrees. Add a 2 mm 45-degree chamfer at the narrow front tip. Add a 1.5 mm wide thread relief undercut groove with 18.6 mm diameter at the base of the thread, connected to a 24 mm diameter solid cylindrical base head that is 15 mm long.
Parameters
| Name | Value | Range |
|---|---|---|
| Major diameter at thread base | 20.95 mm | 15 – 30 |
| Thread length | 25 mm | 10 – 60 |
| Thread pitch | 1.81 mm | 0.5 – 4 |
| Included thread angle | 55 deg | 40 – 80 |
| Taper ratio 1:N on diameter | 16 mm | 8 – 40 |
| 45 deg tip chamfer axial length | 2 mm | 0.5 – 6 |
| Thread relief groove diameter | 18.6 mm | 10 – 26 |
| Thread relief groove width | 1.5 mm | 0.4 – 6 |
| Base head diameter | 24 mm | 15 – 40 |
| Base head length | 15 mm | 5 – 40 |
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.
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