BOMwiki the bill-of-materials encyclopedia 27,966,275 parts mapped · 127,489 items

Tread Set Assembly

The full run of identical wedge-shaped treads plus the spacer rings between their hubs; rotating each tread before clamping sets the rise and the helix. 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

4 top-level lines · 9 rows shown · 107 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Wedge Tread 5 parts spiral-staircase-tread 12× 12 6 assembly
1.1 Tread Plate spiral-staircase-tread-plate 1× 12 — part
1.2 Tread Insert spiral-staircase-tread-insert 1× 12 — part
1.3 Tread Hub spiral-staircase-tread-hub 1× 12 — part
1.4 Baluster Boss spiral-staircase-baluster-boss 2× 24 — part
1.5 Fastener Set fastener-set 1× 12 — part
2 Spacer Ring spiral-staircase-spacer-ring 12× 12 — part
3 Tread Hub Bushing spiral-staircase-tread-bush 12× 12 — part
4 Riser Guard Bar spiral-staircase-riser-bar 11× 11 — part

Used in 1 assembly

Spiral Staircase Kit

Sourcing — likely vendors

Companies that make this · indicative price $0.50–$100 · MOQ & lead are typical
VendorHQSpecialtyMOQLead time
🇨🇳Foxconn
foxconn.com ↗ 		Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
🇸🇬Flex (Singapore)
flex.com ↗ 		Singapore Electronics contract mfg 1,000 pcs 6–10 wks
🇮🇳Dixon Technologies
dixoninfo.com ↗ 		Noida, IN Electronics contract mfg 1,000 pcs 6–10 wks
🇨🇳BYD Electronics
bydelectronic.com ↗ 		Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
🇸🇬Venture Corp
venture.com.sg ↗ 		Singapore Electronics contract mfg 1,000 pcs 6–10 wks