The Yokomo B8-630DWA Aluminum M3 Countersink Washer is a small but important part for holding the main gear securely on BD8-style chassis. Supplied in pairs, these washers help keep drivetrain components running cleanly.
Designed for the MRTC-BD8 series, these washers suit BD8, BD8A, BD8-P, BD8AP, BD8SV, BD818A, and BD818 models. Their countersunk angle provides a flush finish which reduces the chance of screw head interference.
Ensure the washer is seated so the countersunk face matches the screw head before tightening. Proper installation maintains correct gear mesh and lowers the risk of slippage during spirited runs.
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