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General control line discussion => Open Forum => Topic started by: peabody on May 13, 2018, 06:34:53 AM

Title: Screw size
Post by: peabody on May 13, 2018, 06:34:53 AM

Help on the screw size on Great Planes nylon spinners with aluminum backplates?
Besides the awful Phillips heads which I strip first time....I've lost one.

Thanks

Title: Re: Screw size
Post by: Gerald Arana on May 13, 2018, 12:21:41 PM

Quote from: peabody on May 13, 2018, 06:34:53 AM

Help on the screw size on Great Planes nylon spinners with aluminum backplates?
Besides the awful Phillips heads which I strip first time....I've lost one.

Thanks

Here's what I do: Throw away those screws that come with them. Drill one of the spokes and tap it for 4-40 X 1/4" cap heads and you're ready to go.

Jerry

Title: Re: Screw size
Post by: Jim Svitko on May 13, 2018, 03:26:49 PM

I believe it is a 3mm and maybe a JIS for the screwdriver bit.  You can replace them with 3mm internal hex head screws if you like.

Title: Re: Screw size
Post by: Mike Haverly on May 13, 2018, 04:28:47 PM

You can get away with just putting a 4-40 socket head screw in the existing hole.  It is aluminum, yes it should be drilled out but a little persuasion and the 4-40 will go in.  Or use a tap on the existing hole.  Or, get a
M3 socket head cap screw from your local fastener supplier.  Microfasteners will have them as well as McMaster Carr.  There are probably more "ors" but one of the above will get the job done.

Title: Re: Screw size
Post by: peabody on May 13, 2018, 04:46:41 PM

Thanks
I'll try the 4-40s if I have them short enough

Title: Re: Screw size
Post by: Gene Martine on May 13, 2018, 05:29:22 PM

 Rich:
Go to Ace Hardware with the nut or whatever & find what you need.

Title: Re: Screw size
Post by: Doug Moisuk on May 13, 2018, 07:27:38 PM

3mm/4/40? What's the diameter of this spinner?

Title: Re: Screw size
Post by: Jim Svitko on May 13, 2018, 08:28:48 PM

Local hobby shops should have 3mm socket head screws.  DuBro supplies them.

Title: Re: Screw size
Post by: Geoff Goodworth on May 14, 2018, 08:41:17 AM

I just checked one that I have. The screws are M3.

Title: Re: Screw size
Post by: Bootlegger on May 14, 2018, 09:21:14 AM

  Rich, I have used 4-48 screw's and they fit, try them..

Title: Re: Screw size
Post by: peabody on May 14, 2018, 11:14:27 AM

I tapped the backplate for 4/40 and used 1/4" 4-40 screws
Thanks

Title: Re: Screw size
Post by: Randy Cuberly on May 14, 2018, 05:20:23 PM

Quote from: peabody on May 13, 2018, 04:46:41 PM

Thanks
I'll try the 4-40s if I have them short enough

M3's are available at most GOOD hardware stores and you won't risk screwing up your spinner!

Randy Cuberly