I drew this replacement head for kinchrome 25mm soft face hammer.
I will print in TPU and Mylon later, but have so far only printed in PLA.
The thread is M14X1.5 ISO and is around 10mm long
Works well with no issues, (I've been using for assembling friction fit laser cut tab and slot shelving, in 3mm MDF)
https://www.kincrome.com.au/25mm-sft-fce-ham-nyl-poly
2.0mm Layer Height with 6 bottom solid layers
70%infil or more
The author hasn't provided the model origin yet.