Hello MaryGx,
Thank you for your enquiry.
You will need a mortice sashlock for use with these handles. Please see the following link to our website showing what we currently sell:
https://www.screwfix.com/c/security-ironmongery/mortice-locks/cat810292#category=cat810292&morticelocktype=sashlock
Hope that helps.
Thank you for using Q&A
Answered by: Screwfix778
Date published: 2020-12-29