Metric, US threads and barrel nuts from Gorge Sport (Curtis, Orca Fins)

Metric, US threads and barrel nuts from Gorge Sport (Curtis, Orca Fins)

Post by Bill Kli » Tue, 27 Mar 2001 13:43:19


Hello all,

This issue of fin screws is a tough one to solve as 1/4-20 US thread is far
easier to find in the USA and less expensive than hard to find 6mm metric.

Most boards are made overseas, which means fins will be in 6mm like the rest of
the world.

We use 6mm in Powerbox and in Trimm. For Tuttle we use 1/4-20 so you can always
find what you like. Also we use Phillps head on all metric and stright thread
on all US. That way we can see at a glance which is which.

The solution I endorse if your Tuttle (keep PB and TM metric)  fin is metric is
throw out the screws and retap to US 1/4 -20. Keep a fully assembled (color
coded, marked clearly) tap of both types in your gear bag. It is also great for
rethreading stripped barrel nuts,

The below was well put in the other string on this question:

Date: 3/25/01 3:47 PM Pacific Standard Time

Get a 1/4 20 tap or whatever is the most common SST fastener size
available to you and retap your fins' barrel nuts. The difference in


purchase the tap. This works for both Tuttle and Power Box based fins.
Thanks to Tinho at Calema Windsurfing.
Ray

Bill Kline
Gorge Sport USA
Curtis Performance Fins, Orca Fins, Orca Kite Fins
Hood River, OR USA

ph/541 387 2649  fax/541 386 1715

 
 
 

Metric, US threads and barrel nuts from Gorge Sport (Curtis, Orca Fins)

Post by Stergios Papadaki » Wed, 28 Mar 2001 01:03:00

Seems like a lot of trouble,
since stainless steel metric screws are
available in any decent bike shop.

They will probably have only
allen-head, but that shouldn't
be a problem.

Stergios

Quote:

> Hello all,

> This issue of fin screws is a tough one to solve as 1/4-20 US thread is far
> easier to find in the USA and less expensive than hard to find 6mm metric.

> Most boards are made overseas, which means fins will be in 6mm like the rest of
> the world.

> We use 6mm in Powerbox and in Trimm. For Tuttle we use 1/4-20 so you can always
> find what you like. Also we use Phillps head on all metric and stright thread
> on all US. That way we can see at a glance which is which.

> The solution I endorse if your Tuttle (keep PB and TM metric)  fin is metric is
> throw out the screws and retap to US 1/4 -20. Keep a fully assembled (color
> coded, marked clearly) tap of both types in your gear bag. It is also great for
> rethreading stripped barrel nuts,

> The below was well put in the other string on this question:

> Date: 3/25/01 3:47 PM Pacific Standard Time

> Get a 1/4 20 tap or whatever is the most common SST fastener size
> available to you and retap your fins' barrel nuts. The difference in


> purchase the tap. This works for both Tuttle and Power Box based fins.
> Thanks to Tinho at Calema Windsurfing.
> Ray

> Bill Kline
> Gorge Sport USA
> Curtis Performance Fins, Orca Fins, Orca Kite Fins
> Hood River, OR USA

> ph/541 387 2649  fax/541 386 1715

--

Stergios J. Papadakis                  (o) (919) 962 2527
Dept. of Physics and Astronomy         (f) (919) 962 0480
Univ. of North Carolina at Chapel Hill,
Chapel Hill, NC  27599-3255            


http://www.physics.unc.edu/~papadaks