Tee Weld Nut M8-1.25 in Steel for surface in plain with slight oil unless otherwise specified.
Flange Weld On T-Nuts | 3 projections formed on the Top of the Head
In generally used for a blind assembly that required rather than a hole through installation.
For special device can having good conjunction with threaded parts.
More excellent is these can also be customized depending on your different fastening needs.