Thread: pic: Team 3647 West Coast Drive
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Unread 13-12-2011, 15:06
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JamesCH95 JamesCH95 is offline
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Re: pic: Team 3647 West Coast Drive
Quote:
Originally Posted by Mk.32 View Post
They are 1/2-13, I wasn't sure how well 1/4-20s would hold so I went big... but I guess it wasn't needed.
I will make the outsides holes, clearance holes in the next revision for sure.
Sounds good. A 1/2-13 bolt is serious overkill. It's proof load would be 7,800-17,000lbf depending on grade. (I know this is a somewhat arbitrary value, I intend it as an 'order of magnitude' indication of it's strength, i.e. you could comfortably hang an F350 Super Duty truck using one of these bolts).

Here is a nice chart for bolt strengths: http://www.almabolt.com/pages/catalo...oadtensile.htm

A common rule of thumb is designing to 75% of proof load.
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Last edited by JamesCH95 : 13-12-2011 at 15:10.
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