The Laptop Screws have Different Sizes and Length:M2x3mm,M2x4mm,M2x5mm,M2.5x3.5,M2.5x4mm,M2.5x5mm, M2.5x6mm,M2.5x8mm,M2.5x12mm,M3x3mm;Length is measured from under the head.Each 30 pcs(+/-2 pcs), Total 300 pcs
Material:steel,Black dacromet finish.Black-dacromet finish creates a dark appearance and provides mild rust resistance.They are magnetic.Undercut Flat Head Phillips,Thin Flat Head Phillips
The metric laptop screws kit can be used for compatible great majority of universal laptop,Such for IBM HP Dell Lenovo Samsung Sony Toshiba Gateway LG etc
All contained in a compact and see through compartmented plastic Box.Easy to install and use