T Bolt with Flange Nut. T-bolts install anywhere along the profile T-slot, rotating and locking into position. The tapered neck simplifies assembly, and the T-bolt is self-aligning in the T-slot. The positioning groove on the end of the T-bolt visually indicates when it is properly positioned in the T-slot. Features and Benefits. ;Easy to connect components along the T-slot ;Designed for quick installation ;Strong, secure connections ;Available in 8 mm and 10 mm sizes