This has dual pins, not a dual shaft
These are 100K pots, the '1K' on the bottom is an unknown factory marking. They are 100K.

Shaft: Flatted with 2mm split at top
Detent: NONE
Tolerance: 15%
Connection: Pin
Hardware Attached: N/A

Pot Size:
Length: 23.5mm
Base: 12mm x 15.5mm

Shaft Size:
Length from base to tip: 18mm
Diameter: 6mm ***4.5mm wide @ flat section

INTERNATIONAL BUYERS - PLEASE ALLOW UP TO 4 WEEKS FOR DELIVERY!
IF YOU DO NOT AGREE WITH THE POSSIBILITY OF THE ITEM TAKING THIS LONG TO ARRIVE, THEN PLEASE DON'T MAKE THE PURCHASE!
WE SHIP YOUR ITEM WITHIN 3 DAYS, BUT WE CANNOT CONTROL HOW LONG IT TAKES THE USPS/CUSTOMS/AND YOUR POSTAL SYSTEM TO GET THE ITEM TO YOU!