Made of high quality Stainless Steel,strong hardness,anti-corrosion and good stability. Thread design on the surface of the screws,avoiding screws being loosed effectively. Generic Screw Assortment kit with different sizes,satisfy your wood and various hardware locked needs. The set of assortment screw is perfectly suitable for wood working and electronics fastened working. You'll get 800 pieces M2 screws packed by a plastic organizer box with grids,the screws are placed according to different classification. name: Self Tapping Screw Material: stainless steel Color: silver Specifications: M2*4mm M2*5mm M2*6mm M2*8mm M2*10mm M2*12mm M2*16mm M2*20mm Package Contents: 800 * M2 self tapping screw assortment kit 1 * Plastic Organizer Box Only the above package content, other products are not included. Note: Light 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.