[Fot] Bolts and Threads

[Bob Davis]

Go to Aircraft Spruce and Specialty. They will have what you need in 
aircraft grade fine thread. They stock nearly everything and ship fast. 
I have outfitted all my race cars over the years with hardware from them.

On 11/24/16 11:03 AM, Bud R wrote:
> The Collective,
>
> I’m working on the Spitfire’s traverse leaf swing spring rear 
> suspension and can’t find locally the 7/16”  fine thread (20 tpi) by 3 
> 1/2” bolts that were holding the vertical link and to the trunnions 
> and to the swing spring bushings.
>
> I can find the right sizes in a coarse thread (12 tpi) grade 8 bolt 
> and thats my plan. The old ones are grade 5 or in one case a bolt with 
> no slash marks on top. I don’t know what it is.
> Do these bolts need to be fine thread for any particular reason, e.g. 
> for safety, torque specs, etc.? Is a grade 8 bolt a good idea where it 
> will be stressed with all the up and down motion with the vertical 
> link? Too brittle? Usually I go for grade 8 whenever possible but I’ve 
> heard there are instances where it might not be the best solution.
>
> An aside for Thanksgiving:
> My son and his wife teaching in Shanghai said the Chinese love to 
> celebrate American holidays (they know them from American TV and 
> movies) but their take on Thanksgiving is that you thank people who do 
> nice things for you. So they got cards from their students thanking 
> them for teaching. Kind of a different twist but a good one I thought.
>
> Happy Thanksgiving to all.
>
> Thanks,
> Bud Rolofson
>
> Extreme Parts Racing (more than just a haircut)
>
> 71TR6 CC57365 (Good 6)
> 71 Spitfire MK IV Race Car #3
> 69 Spitfire MK 3 (back up FE engine/dinghy car)
> 93 Minnie Winnie Race Support Vehicle
> 77 Z-50A Hardly Davidson Honda Mini-Trail Bike (Triumph Pit Bike)
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> _______________________________________________
> fot at autox.team.net
>
> http://www.fot-racing.com
>
> Donate: http://www.team.net/donate.html
> Archive: http://www.team.net/archive
> Forums: http://www.team.net/forums
> Unsubscribe/Manage: http://autox.team.net/mailman/options/fot/rdavis4@cfl.rr.com
>
>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://autox.team.net/pipermail/fot/attachments/20161124/6cb11edc/attachment-0001.htm>