DMB D.R.U.M. Parts Links to Parts 8x M3 Threaded heat inserts (Preferably 5mm in length)6x M3 x16mm screws (Preferably Socket Heads)2x 8mm(ID) x 22mm(OD) x 7mm (Depth) Skateboard bearings (Standard)3x ~5mm x15mm springs1x 5/16 x 2in bolt w/ washer and nut (bought at local hardware store)1x Main Spring