no screws but it depends on what you're looking for.
Yes they but try to go on line first.
No, normally you are instructed to call the manufacturer with the phone number provided in your owners manual, have model and serial number ready, they will ether have the part are you can check for local appliance repair shops in your area, always have the name, part number in your owners manual, serial number and model number ready when you do this so you will get the right part.
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