R5 - Short side cover screws - These cover screws are used in APQS side plates and the front cover, top long cover, bottom circuit board cover; and hook finger
R7 - Short Cover Screws - These cover screws are used in APQS side plates and the front cover, top long cover, bottom circuit board cover, and hook finger
R9 Long Cover Screws - These longer screws are for the top motor cover and are used in conjunction with cover spacers. These screws also hold the bent wire thread guides in place.