Center Column Assembly
Vertical steel tube on which every tread is threaded; it carries the full stair load down to the base plate and is the datum for the whole geometry. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
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Bill of materials
5 top-level lines · 5 rows shown · 6 parts total · indented to 3 levels| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Column Tube | spiral-staircase-column-tube | 1× | 1 | — | part |
| 2 | Column Extension Sleeve | spiral-staircase-column-sleeve | 1× | 1 | — | part |
| 3 | Column Cap | spiral-staircase-column-cap | 1× | 1 | — | part |
| 4 | Clamp Collar | spiral-staircase-clamp-collar | 2× | 2 | — | part |
| 5 | Fastener Set | fastener-set | 1× | 1 | — | part |
Used in 1 assembly
Sourcing — likely vendors
Companies that make this · indicative price $0.50–$100 · MOQ & lead are typical| Vendor | HQ | Specialty | MOQ | Lead time |
|---|---|---|---|---|
| 🇨🇳Foxconn foxconn.com ↗ | Shenzhen, CN | Electronics contract mfg | 1,000 pcs | 6–10 wks |
| flex.com ↗ | Singapore | Electronics contract mfg | 1,000 pcs | 6–10 wks |
| dixoninfo.com ↗ | Noida, IN | Electronics contract mfg | 1,000 pcs | 6–10 wks |
| bydelectronic.com ↗ | Shenzhen, CN | Electronics contract mfg | 1,000 pcs | 6–10 wks |
| venture.com.sg ↗ | Singapore | Electronics contract mfg | 1,000 pcs | 6–10 wks |