Features These pan head screws are great to use in confined areas where the head needs to be flush or below the surface Screws have sharp threads that cut into a material such as soft metal sheet, plastic or wood There are eight common lengths from 4mm to 20mmin this set for general purpose use Well packed and assorted in a resealable transparent box for convenient storage and carry Used widely in energy, electronics, electrical appliances, machinery, chemical, metallurgy, mold, hydraulic and other industries Specifications:Material: carbon steelThread specification: M2Thread tolerance: 5gModel: pan Head Self-TappingBox Size: 13 x 6.5 x 2.5cm / 5.1 x 2.6 x 0.98inchSize and Quantity:M2*4mm       100pcsM2*5mm       100pcsM2*6mm       100pcsM2*8mm       100pcsM2*10mm     100pcsM2*12mm     100pcsM2*16mm     100pcsM2*20mm     100pcs Package Included:800pcs x Pan Head Self-tapping Screws Package List