I used stainless 5mm x 40mm and it holds really well and the heads countersink nicely into the plate. If you want something that has to hold a huge weight I’d use 5 x 50mm which also fit but the heads of the screws won’t fit flush to the plate.
The packet says they will take maximum 6 mm screw. I used them to mount onto brick.
Answered by: AndyAbouthehouse
Date published: 2022-05-26