Features: These flat 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 20mm in this set for general purpose use. Well packed and assorted in a resealable transparent box for convenient storage and carry. Used widely in the home and office appliance, wood furniture, repair and inventions. Specifications: Material: Nickel-plated carbon steel Type: Cross flat head Size and Quantity: M2*4mm 100pcs M2*5mm 100pcs M2*6mm 100pcs M2*8mm 100pcs M2*10mm 100pcs M2*12mm 100pcs M2*16mm 100pcs M2*20mm 100pcs Box Size: 13.2 x 6.5 x 2.3cm / 5.19 x 2.56 x 0.9" Package Includes: 800pcs x Self-tapping Screws Package List 1These flat head screws are great to use in confined areas where the head needs to be flush or below the surface 2Screws have sharp threads that cut into a material such as soft metal sheet, plastic or wood 3There are eight common lengths from 4mm to 20mm in this set for general purpose use 4Well packed and assorted in a resealable transparent box for convenient storage and carry 5Used widely in the home and office appliance, wood furniture, repair and inventions