10pcs M8 T-nuts. Thread Options: M8. 10pcs Black Oxide T-slot T-nuts to Fit T-slot Rail，Machine T-slot Bed. 2PCS POS 6mm/8mm M6x1 M8×1.25 Rose Joint Male Rod End Bearing Right Hand UK New. Bottom of T-Slot nut is staked to prevent the stud from protrusion.
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