This is a medium size black knob for the hand throttle control. Model application is for some 356A and 356B, all body styles.

A brass insert is embedded with an exposed hex nut for secure tightening of the knob. A set screw is added security. Thread is 6 mm x 1 mm.

This knob is in the 15-Piece Complete Knob Set, see: NLA 552 KNO BLK.