What is the maximum wall surface thickness these can be used for? I need them for an 18mm surface.
Hello. Assuming that this is a dry partition wall, they can be used from 6.35mm up to 15mm. Anything else we would suggest contacting a qualified and competent electrician. Thank you for your interest in our appleby brand.
Answered by: Wylex Expert
Date published: 2021-08-24