I recently contacted Andis concerning some replacement blade screws. Ours were misplaced after we took the old blades off to get the blade's part number. I looked up some replacement screws that several online stores had; they were typically priced at $0.60 + $12.00 S/H. Jane at Andis was really nice and sent me a couple free of charge and threw in some blade oil, which we also had a need for.