Datsun Roadster Star Knob for choke & throttle cables & hose cables.

Datsun New Style Turn & Twist To Lock NISSAN

Nissan's new style "Star" knob used on the last available choke cables and throttle cables. Not original to Datsun's original knobs in the 60's, but you may need this if the old one has gone flat from the sun or bad or if you want to save some money on a replacement knob.
You can use this on a old or new assembly, old assembly requires you to drill a hole in the shaft of the choke, throttle post and install the roll pin supplied.

The knob will then turn and twist to lock into position. Compare elsewhere at $16.10