Different configurations to choose from. Order the jacks you need in any quantity, then choose between round knurled or hex nuts. Add flat washers if you prefer. 

Lower unit prices for higher quantities

For ‘Thonkicon’ jacks please click here: https://synthcube.com/cart/3-5mm-audio-jack-metal-sleeve-thonkicon-type-wqp518ma-bm-pj-301bm-1389004051?search=thonkicon&description=true

For ‘Erthenvar’ jacks please click here: https://synthcube.com/cart/3-5mm-audio-jack-metal-sleeve-erthenvar-type-wqp518ma-bm-pj-301bm?search=erthenvar&description=true

IMPORTANT: JACKS ARE SOLD SEPARATELY FROM NUTS AND WASHERS​

• 3.5mm right angle mono and stereo switched jacks (replaces PJ-302M)- WQP729JH-R Mono Switched (Red) and WQP729JH-B Stereo Switched (Blue) 
• 3.5mm stereo jack, WQP419GR (PJ366ST) (green jacks)
• 3.5mm stereo jack, WQP-PJ301CM

some images courtesy of thonk, inventor of the thonkiconn!