Product Details: Head type: countersunk flat head / Drive system: phillips / Thread type: full threadPackage Includes: 1 size 12 Kinds Phillips Flat Head Self-Tapping Screws. Contains M4 x 8mm/10mm/12mm/14mm/16mm/18mm/20mm/25mm/30mm/35mm/40mm/45mm wood screws, meet all your demands.High Quality Material: INDPROD M4 Wood Screws Assortment Kit is made from high quality 304 stainless steel, hard and durable. It is both robust and practical. The head of the screw will not be easily broken under low torque. A box of screws set composed of twelve lengths, a total of 530 screws can be used to better meet your needs.Storage Box: There are 530 pcs different types of self-tapping screws. All of wood screws will be packed in a sturdy convenient case, can be used for a storage box, is organized to you.Wide Application: INDPROD self-tapping screw sets are mainly used in construction materials such as metal, plastic, plasterboard, wood panels, ceilings, partitions, etc. INDPROD self-tapping wood screws have sharp tails and deep threads, and the screws have burr-free surfaces for effective penetration into the material.