![](https://kb-3d.com/store/1962-large_default/t-nut-drop-inroll-in-40-series-8mm-slot-width-m4-threads.jpg)
While wider in size, these T-nuts offer post-assembly installation with a ball spring retention mechanism to prevent sliding. Fits any 40mm aluminum extrusion with 8mm slot widths. Threaded for M4 fasteners.
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