# 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?

- Category: Hardware › Framing
- Kind: Standard part
- Basis: Distributor listing of B-Line B116-12ZN; leg and hole drawings could not be read, numbers only, no file
- Page: https://xemstudio.com/objects/strut-u-z-fittings-post-bases/ · JSON: https://xemstudio.com/api/geometry?object=strut-u-z-fittings-post-bases · Plain text: https://xemstudio.com/objects/strut-u-z-fittings-post-bases/sheet.txt
- License: dimension sheet CC BY 4.0 (Xem Studio); files CC BY 4.0 or their publisher's license
- Use in every chat: add https://xemstudio.com/mcp as a connector (https://xemstudio.com/use-with-ai/)

**Exact dimensions.** True size, with no printing tolerance added.

## 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.

## Sizes

| 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

- Eaton B-Line: [B-Line series strut systems: Strut fittings catalog section (flat plate, 90° angle, U, Z fittings, post bases)](https://www.eaton.com/content/dam/eaton/products/support-systems/strut-systems-&-accessories/strut-fittings-and-accessories/strut-fittings-catalog-section.pdf) — 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](https://steinerelectric.com/Catalog/ConduitFittings-And-Wireway/Cable-Trays-And-Struts/Strut-Channels-And-Accessories/Channel-U-Shaped-Fittings/B-Line-B116-12ZN-3-Hole-U-Support5-7-16-in-L-x-1-5-8-in-W-x-1-4-in-THKSteel-218807) — web — Publisher's page; dimensions are facts
- McMaster-Carr: [Strut channel fittings (free STEP/IGES per part, for your own design use; no redistribution)](https://www.mcmaster.com/products/strut-channel-fittings/) — STEP, IGES, PDF — McMaster-Carr site terms: personal design use, no redistribution (verify at link)

## Questions

**Does Xem have a strut post base file?**

No: the hole pattern per part is not readable from the sources reachable.

## Fits with

- [Strut channel, 1-5/8 in (Unistrut / B-Line): profile, lips, slots and hole patterns](https://xemstudio.com/objects/strut-channel-1-5-8/)
- [Strut channel nuts (spring nuts) for 1-5/8 in channel: threads, thickness and loads](https://xemstudio.com/objects/strut-channel-spring-nuts/)
- [Strut flat plate fittings, 1-5/8 in: splice, tee and L corner plates (B-Line B129, B141, B341, B133, B143)](https://xemstudio.com/objects/strut-flat-plate-fittings/)
- [Strut 90° angle fittings, 1-5/8 in: B101 and B104 corner angles](https://xemstudio.com/objects/strut-angle-fittings/)