5/16″-18 Wing Knobs 10 Pack, Clamping Knobs with Steel Insert for T Track Bolts,
Feather boards. The T Style Thru Hole Knobs. It allows you to streamline your workflow and enhance your project results with a simple twist and turn. PREMIUM BUILD. Hand tools. INCLUDES: (10) Thru Hole T-Knob Fittings 5/16"-18.