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14th June 2012 08:09 AM

Just search on google: The "FIN-SCREW-CASE" by Sonntag-Fins

Sends worldwide and always right size
2nd June 2012 09:35 PM
Phill104 If you are in the Uk there are plenty of places that do them. A quick google reveals places such as this http://www.custom-fasteners.co.uk/ac...ad_Screws.html

Screw fix used to sell packs of 50 for under a tenner but sadly the currently do not stock them. They were 100mm long but we used to just cut them down.

I am sure somewhere online near you will sell them. No need to buy from a ws dealer if they don't have them in stock or want the hassle of ordering just 2 in for you. Just make sure the ones you buy are good quality marine grade stainless or they will rust to smug after the first outing.
2nd June 2012 02:06 PM
Roger Hi Biz,
OK, I understand the problem.
You want to put a std. Tuttle fin in a Deep Tuttle fin box.....correct?
For this you need the 90 cm screws as from the original Larry Tuttle Drawings, the
Deep Tuttle is 17 mm deeper than the Std. Tuttle.
So, check with your nearest Starboard dealer or windsurf shop.
They should have the 6 mm x 1.0 x 90 mm fin screws you need.
They are available, just hard to find.
2nd June 2012 01:09 PM
Biz Hi Roger

Sadly the 70mm bolts dont fit. I was told that the iSonic can take both types of fins the tutle and the deep tutle. But Ive only been given the bolts for deep tutle which is 70mm. Frustrating im sure you can imagine. Ive done a bit more research and at the moment 85mm and 90mm are popping up alot im sure i can go and get some made up. Thanks
2nd June 2012 12:59 PM
Roger Hi Biz,
According to the fin bolt chart (found under "Products" ....."Product Assistance"....."Fin Bolt Chart: at the top of this page) the 2012 Isonic 117 Wide uses "iSonic 117 Wide M6 x 70 + 70 = 2 ".
So, you need 2 6mm x 1.0mm x 70mm long fin screws.
Hope this helps,
2nd June 2012 09:05 AM
Fin screws iSonic 117 Carbon


I have a 2012 Carbon 117 iSonic but only have the tutle fins for the board can some one tell me how long the screws need to be for the fin to fit.


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