These Schumacher Racing Products M4 washers are a factory replacement hardware item designed for use across a range of Schumacher 1:10 RC vehicles. The Speed Pack designation means this is a multi-piece bulk pack intended to keep your parts supply stocked. Each washer is metal construction sized to M4 fasteners, making them a straightforward match for standard M4 bolts and screws throughout your build or repair. Check the compatibility list on this page to confirm fitment with your specific model. Features: M4 sizing for use with M4 bolts and screws Metal construction Speed Pack multi-piece bulk quantity Schumacher Racing Products factory replacement hardware 7/7/26 cs