Can anyone aid me in identifying these threads?

[Sean777]

Curious if someone could identify these threads and looking to add to my Kitless pen making? Thanks in advance for your help. Happy turning everyone.

 

[Nedge]

Good Morning Sean,
Here is a link on the introduction to bolt and nut sizes, if you have a fastener supplier in your area they may have thread gauges to help you ID the thread pattern if you bring the part to them. Ed

https://www.huyett.com/blog/nuts-and-bolts-sizes

 

[rherrell]

Those look like "rolled" or "formed" threads, they're done on a machine so you won't be able to duplicate them in your home shop.

https://www.accu.co.uk/p/360-rolled-thread-vs-cut-thread-the-differences-benefits-of-each-thread-type