Torx. T-35. T-37.

Do T-35 and T-37 actually exist?

I say yes. I have hand drivers for each.

But no sockets for my sets.

I have had both size screws on Volvo and Toyota.

Others say the don't exist and just grab a T-30.

What say you SME's and power users? Is there an official list?

 

Torx 35 is available
Torx 27 is available
Cant say I have ever heard of a 37
https://shop.snapon.com/search?q=Torx 37

 

I think it was never an "official" size - I mean searching the WWW gives me T-35 which is somewhat rare, but only very few hits on T-37. I think Toyota for one has some awfully sloppy T-30 head screws and the T-35 or even a T-37 fits better. A T-40 just won't do it.

To add to the madness (ha) I have found new "Craftsman" driver sets to really be on the min material condition! So even sloppier fits.

 

No T37 comes up searching on McMaster. The only T35 that comes up is a security bit.

The trans drain plug on my wrx is a T70.

 

So was mine. Probably won't use the T70 again for anything else!

I found a couple other people using a T37. This may have been a relic from the 1970's. Torx was invented in the 1960's.

 

CTA makes a T37 security bit.