temperature control

Hello, I am a new plumber here and I have a customer that has a broken brass "screw" that connects the shower handle to the cartridge. I have asked fellow plumbers and supply stores, but no one is able to identify the company, part, or model number. I thought I found the part from Rohl, but...

Hi guys, I was wanting to replace my temperature control lever in the bathtub/shower because it was leaking. The problem is, no Allen key fits in the metal lever. When turning the Allen key that seems to fit, there seems to be some ticking noise but it just doesn't move the screw. Refer to the...