Tips for using loop end strings on a build?

Hi, I’m getting ready to start dulcimer #3 and have just purchased some d’darrio dulcimercstrings with loop ends. Being a long time guitar player these are new to me. Also, I’ve never seen an actual dulcimer in person other than the two I’ve built myself so I’m a little vague on the method of using these loop strings.

ive seen people use little pins /nails at the tail end of the build...is that a standard feature? Does anyone know what those little pins are called and if they are available in the UK?

Thanks