What should I do if I lose any of the hardware required to assembly the Sun Joe Mow Joe MJ401E Lawn Mower? If you lose any of the hardware required for assembly, please send us an email and select Part Request in the subject heading. Please indicate which hardware you are missing, the model number of your lawn mower, and your mailing address. We will gladly ship you any missing hardware. If you prefer to call, please contact us directly at (866) SNOW-JOE Related articles Where can I find replacement parts for the Sun Joe Mow Joe MJ401E Lawn Mower? How do I adjust the cutting height on my Sun Joe Mow Joe MJ401E Lawn Mower? Can you remove the batteries from this unit? How loud is my Mow Joe MJ401E? How do I assemble my MJ401C?