DeWalt BOLT - 90639221

Genuine DeWalt left-hand drive screw — M5 × 8.5 mm — designed to secure the washer and primary drive sprocket under the chain cover on DeWalt cordless chainsaws; it’s the exact replacement screw used to keep the sprocket and chain retained and aligned.

This part is sold individually and is the same original DeWalt fastener found on a number of 60 V and 20 V cordless chainsaw models  : DCM565 , DCM565N , DCM565P1 , DCM575 , DCMCS565N , DCMCS565P1 , DCMCS574N , DCMCS575X1 , DCMCST635N , DCMCST635X1 , SFMCCS630 , SFMCCS630M1 , SFMCCS730B , SFMCCS730M1 and SFMCCSB664B

If your chain came off, the sprocket won’t seat, or the retaining screw is damaged or snapped, this genuine DeWalt replacement screw is the exact-fit fastener you need — keep a washer handy when reassembling, since the screw secures that washer to the sprocket. DeWalt spare parts like this one are a simple, durable fix to get your saw cutting again.