Eric_in_SD

Someone else can probably be more definitive, but the cable guides are for where open cable goes along the frame, such as the rear derailleur cable.
The S clip is for the front cable sheaths.
I think the four bolts are for reflectors - like if you have different thickness handlebars or seat stem.
I didn't have the adjusting screws in my parts bag. Kinda freaky. Those actually look more like set screws than adjusting screws.