What ⌴ means
It marks a flat-bottomed recess around a hole. In the counterbore callout, ⌴ follows the main hole size; its diameter and depth size the wider seat.
When can ⌴ mean spotface?
Earlier ASME drawings used it for both. Before 2009, ⌴ marked counterbores and spotfaces. Y14.5-2009 added SF for a shallow spotface seat.
What it means when someone sends it to you
2 readings⌴ could mark a counterbore or spotface.
Don't confuse it with
2
Related characters
1
Questions people ask
1Does a counterbore go through?
No. It recesses the hole's opening; the main hole can continue deeper or pass through.
More like this
9
How to type or find ⌴
- Search it as
- counterbore symbol · cbore · counterbore callout · spotface symbol · countersink
- Shows up in
- Anything that takes text · its shape is whatever your font draws
Codes and encoding1 code points
HTML decimal
⌴
HTML hex
⌴
CSS content
content: "\2334";
Each escape is closed by the next backslash; a trailing space is needed before a literal hex digit.
URL encoded
%E2%8C%B4
1
On screen
1
Code points
1
JS .length
3
UTF-8 bytes
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.