By Huu Khanh Nguyen · Updated October 28, 2026 · speed-rail, tube-fitting, flange, angle-flange
A cast rectangular base plate with a socket leaning to a slope, for an upright on a stair or ramp.
| Name | Default | Unit |
|---|---|---|
| Tube outside diameter | 42.4 | mm |
| Socket bore | [43, 34, 27].at([42.4, 33.7, 26.9].indexOf(tubeDiameter)) | mm |
| Finish | white |