Library › Hardware › Framing ·
Strut U fittings, Z fittings and post bases, 1-5/8 in: B116-12 U-support
What are the dimensions of the B-Line B116 U-shaped strut fitting? · Standard part · basis: Distributor listing of B-Line B116-12ZN; leg and hole drawings could not be read, numbers only, no file
Also called: b116 u support, strut u fitting dimensions, b279 post base, strut z fitting
Exact dimensions. True size, with no printing tolerance added.
- sizes
- 1 in table
Notes
- Listed: 3 holes, 5-7/16 in long, 1-5/8 in wide, 1/4 in thick, 9/16 in holes, depth 2-7/16 in (the listing's own label; the listing also contradicts itself on width, so treat as unconfirmed).
- Z fittings and post bases (B279, B280, B281A families) show 3/4 in holes in the catalog, but the hole pattern per part number could not be matched, so nothing is published.
Strut U fittings, Z fittings and post bases, 1-5/8 in: B116-12… size chart
| part | holes | length | width | depth | thickness | hole |
|---|---|---|---|---|---|---|
| B116-12 | 3 | 5-7/16 in (138.1 mm) | 1-5/8 in (41.3 mm) | 2-7/16 in (61.9 mm) | 1/4 in (6.4 mm) | 9/16 in (14.3 mm) |
Where the files are
Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.
| Eaton B-Line | B-Line series strut systems: Strut fittings catalog section (flat plate, 90° angle, U, Z fittings, post bases) | web | Publisher's page; dimensions are facts |
| Steiner Electric (distributor) | B-Line B116-12ZN 3-hole U-support: 5-7/16 in long, 1-5/8 in wide, 1/4 in | web | Publisher's page; dimensions are facts |
| McMaster-Carr | Strut channel fittings (free STEP/IGES per part, for your own design use; no redistribution) | STEP, IGES, PDF | McMaster-Carr site terms: personal design use, no redistribution verify |
Xem scan
File coming
No downloadable true-size file yet: the published figures do not fix the whole shape, and Xem never guesses a number. A measured scan is planned; request it and it moves up.
https://xemstudio.com/mcp to Claude, ChatGPT, Cursor or any MCP client (free, no account, one minute) and it can look up exact sizes, mating fits and free STEP/STL from every chat.Plain text: sheet.txt · JSON: /api/geometry?object=strut-u-z-fittings-post-bases
Fits with


Questions
Does Xem have a strut post base file?
No: the hole pattern per part is not readable from the sources reachable.