Hey Gabby, I need to tighten the levers on my 318s & 322s. I have a few questions. Set screw is 22H841, $2.13 ea, 1/4 x 1/4. Shaft key is 26H70, $.67, 1/8 x 1/2. Are there any better alternatives for these parts, such as a screw with a conventional hex head, to replace the set screw? Is there room? Does the side panel and lever assembly need to be removed to access both the set screw and key?