Standard: 112AX switchcraft , 112APCX for oakley by using the sock boards
overview switchcraft:
http://www.banzaimusic.com/Chassis-Mount/
Alternativ Product:
http://www.musikding.de/63mm-Klinkenbuchse-Mono-m-Schalter
reanjack (neutrik) oder Lumberg sind ebenfalls gute Bauteilehersteller
REAN JACK NYS232 – MOUSER, Conrad
lowcost: Reichelt Produkt: EBMSV 63 - don´t use in Modularsystem...
all other brands i had tested was very bad
if you buy cheap - you have to buy a further one