Product Description Detailed Specs Downloads Reviews/Questions Product Description RAM MOUNT, UNPD KNOB LOCK 5/16"-18 HOLE STEEL C SIZ Detailed Specs null null null null null null null null null null MFG Part Number RAM-KNOB5LSU Product Type Accessory Downloads Reviews/Questions The Ram Mounts RAM-KNOB5LSU is also known as RAM -RAMKNOB5LSU or RAMKNOB5LSU