4-40 or 6-32 control arms?

[Wayne Galligan]

Which brings up a good point here.

Do you use steel bolts or stainless steel bolts.
Stainless is a softer material and would it be prone to breaking easier?
Or is the harder steel bolt more likely to snap under vibrating conditions?

Wayne G.


  ----- Original Message ----- 
  From: Rcmaster199 at aol.com 
  To: discussion at nsrca.org 
  Sent: Monday, February 14, 2005 9:09 AM
  Subject: Re: 4-40 or 6-32 control arms?


  In a message dated 2/14/2005 12:22:29 AM Eastern Standard Time, ed_alt at hotmail.com writes:
    I've been using 6-32 bolts to make the control horn arms for my 2M setups so far.  It seems like that might be overkill and that 4-40 would suffice.  Is it OK to go lighter like this?

    Thanks
    Ed A.
  Ed I wouldn't do that especially on ailerons. I have had 4-40's snap off like twigs on 90 sized models before. The vibration kills them.

  Matt
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.f3a.us/pipermail/nsrca-discussion/attachments/20050214/53d4184f/attachment.html