what are these allen type screws for?

slow but steady
slow but steady Posts: 29
edited February 2010 in MTB beginners
Hi,
Bike arrived on Thursday Cube Ltd Comp HS33.

I've attached Handlebars, Pedals, Seat and front wheel so it resembles a bike but I've 4 Allen head screws left in box they are about 1cm long there's also small square of plastic (1cm square) with 2 slits in and semi circle of plastic.

They all same to go together but does anyone know what they are for?

Am I safe to venture out or do these need attaching somewhere?

Thanks

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