Features: Internal connector that requires no machining Compatible with 10 and 25 Series profiles Infinite positioning along the T-Slot profile Two ways to install: Slide into the end of profile or install on captivated profiles with roll-in T-nut Holding force exceeding 300 lbs and torsional strength over 144 in-lbs Left-handed barrel thread and self-retained screw to support ease of installation Install barrel thread with 5mm ball end power bit (PN65-6091). Use 4mm ball end hex wrench for screw (PN 65-6097)