I used my last spare I had on hand yesterday.
They do get a hard time, as I'm constantly adjusting the downhaul on these sails on my land yachts while sailing.
Just need to know where can I buy some more thanks. (6 holes then they fit the 4 as well)

Have you tried reg at wsp.
prob your best bet.

If WSP does not have them try windsurfnsnow in NSW.
OR
www.asap-direct.com/goodsCat/list/735
Pryde direct

These are defective parts...I thought NP stopped supplying them years ago....I thought they were well and truly gone and not supplied anymore? Such a massive pain in the Arse then they break....Takes ages to put new ones on!!!!