LAPTOP / NOTEBOOK SCREW FOR M.2 SSD - 2 pcs only. M.2 SSD - Universal Size for M.2 SSD = CM2*3. ** This is the the general information, however, kindly check with the laptop vendor web site for more information. Multiple SIzes Available - Check other products in our store for more sizes. Screw Type & Measurement : Eg : [T][D]*[L} [T] : If M = Flat Head ; [D] Diameter ; [L] Length ; CM2*3 : FLAT HEAD ; DIAMETER : 2MM ; LENGTH : 3MM ; Unit of Measurements : 1 set = 2 pcs What's in the package : M2*3 x 2pcs.