1/2-27 UNS hex nuts

[BD]

Does anyone have a source for 1/2-27 hex nuts to fit the star sizer punches? Preferably a little thicker than the star originals so I could add a set screw. At this point I have a dozen punches and only one nut. I'd like to put a nut on each of them, so I don't have to fiddle around with adjusting them every time.

[farmbif]

I was intrigued. never heard of 1/2-27, 1/2-28 is hard enough to find
but here is one
https://www.amazon.com/Scag-Hex-2-27-Part-48787-01/dp/B00TD8SOL2

[BD]

I may give scag a try. I was put off by the name, and the description, (one nut and the package weighs 5 lbs?) and because despite owning and using a large variety of power equipment over the years, I have never heard of them.

[bosterr]

I got 10 nuts from eBay along with a 1/2 28 tap to clean up the set screw threads after I drilled and tapped for the 8-32 set screws. Some are thicker than others so you don't know until you get them.

[15meter]

https://www.scagparts.com/scag-48787-01

Scag is high end zero turn lawnmowers,

In my digging, it looks like the nut to mount stem mounted PTO switches. You may be able to find some at a lawnmower repair shop. They probably get tossed in a box ( or the trash) when ever a new switch is installed.

Unfortunately it is probably very thin.

Might also try stuff like replacement choke cables, they may very well use the same thread.

[fc60]

Greetings,

I have machined many 1/2-27 nuts for the Star machines.

You buy a length of 11/16" hex bar, 12L14 alloy.

Either chuck in a three jaw or use a 11/16" hex collet.

1/2-27 taps are available from McMaster Carr.

On occasion, you can source the taps via eBay. Just be sure they are not marked "Made in China"

Cheers,

Dave

[shell70634]

Star Machine works probably has them. Bruce Williams StarMachineWorks.com

[farmbif]

scag has been around a while and makes some of the best mowers money can buy right here in USA since the 80's.
for $2 and change its worth a try.
but I'm the kind of mechanical fool that would source some oversize extra heavy duty 7/16 nuts. drill them out and retap with the no so common thread

[country gent]

Look at bicycle shops 27 tpi is a standard on bicycles.

[15meter]

Look at bicycle shops 27 tpi is a standard on bicycles.

Axle nuts if I remember correctly, forgot all about them, steal'em from the kid's bikes, they'll never notice.