[TR] bolt lengths used on Triumphs

[Alex & Janet Thomson]

John Deere specifies a 5/16 x 2 1/8” bolt to hold rake teeth on their older hay rakes – a very low tech application. I always think – why? I use 2 ¼” long bolts and it works fine. As far as a blind hole goes, you could always run a bottoming tap in there to make sure you have a full thread to the end. Make sure the hole is clean with no oil taking up the space – that can cause the bolt to “bottom out” before it really does.

 

Alex Thomson

 

From: Triumphs [mailto:triumphs-bounces at autox.team.net] On Behalf Of Sujit Roy
Sent: Wednesday, April 07, 2021 12:44 PM
To: Triumphs
Subject: [TR] bolt lengths used on Triumphs

 

I need a bolt HB815 which is at 5/16 x 1 7/8" long. 

Rimmer and TRF list this no. under a 2 inch bolt. I'm assuming you can't get 1 /78" long bolt anymore. I tried fastenal and Bolt Depot. Not tried mcMaster carr. 

The last time I needed one of these I bought a 2" bolt and cut a bit of the end.

I'm just wondering when a blind hole is drilled for a bolt, how much dead space is left at the end? Is there some rule of thumb?

 

Sujit


 

-- 

Sujit Roy
Cupertino, California


https://triumphstagblog.wordpress.com/

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://autox.team.net/pipermail/triumphs/attachments/20210407/dfa7d263/attachment.htm>