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?Set screw on both levers were loose; not even finger tight. One key was worn and elongated. I lost the second during disassembly. I have ordered both keys and set screws. I have had issues reusing original set screws.They like to strip out the allen head insert and will reloosen. Replacement cost is $2.13 (USD) each. Dealer is transferring parts from a sister store. they should be here tomorrow afternoon.