[HIGH QUALITY]: Made of Carbon Steel,resistant to rust,good corrosion resistance in bad environment,commonly have a sharp point that helps penetrate the material.[WORKMANSHIP]: Adopting high-precise cutting technology, the screw thread is very precise, clean, sharp, the deep and clear thread can easily penetrate the wood and plastic and ensure a secure hold,is not easy to decompatible withm and slid while using.[INCLUDES]: 8 Kinds Phillips Flat Head Self-Tapping Screws. Contains M3 x 6mm/8mm/10mm/12mm/16mm/20mm/25mm/30mm wood screws and M6 screw anchors, meet all your demands.[STORAGE BOX]: There are 420 pcs different types of screws. All of screws will be packed in a sturdy convenient case, can be used compatible with a storage box, is organized to you.[WIDE APPLICATION]: Self tapping wood screws are mainly used in metal, plastic or board articles,such as gypsum boards, wooden board, ceiling, partitions,etc.Widely used in electrical products,communication equipment, ship assembly,machinery, furniture,other maintenance work,DIY arts and craft.colour: black + whiteMaterial: carbon steelPackage Contents:50 x M3x6 screws50 x M3x8 screws50 x M3x10 screws50 x M3x12 screws50 x M3x16 screws50 x M3x20 screws50 x M3x25 screws50 x M3x30 screws20 x Expansion screw capOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.