Description: Made of high quality stainless steel, corrosion resistant and durable for a long time use Easy to install and durable to use These screws and nuts will be great replacement for industrial and construction fasteners. Used widely in the home, office, school, hospital, garden, bicycle, motorcycle, automobile, workshop, electric equipment, ship assembly and other machinery industry. All of screws will be packed in a sturdy plastic box, can be use for a storage box. Specification: Material: Brass Quantity: about 270pcs Plastic Storage Box Sizes: 13 x 2.5 x 6.8cm(4.92 x 0.98 x 2.36") Male-Female M2 Brass Standoff / Screw / Nut Assortment Kit Package Includes: 10 Pieces M2*3+3mm brass male-female standoff 10 Pieces M2*5+3mm brass male-female standoff 10 Pieces M2*8+3mm brass male-female standoff 10 Pieces M2*10+3mm brass male-female standoff 10 Pieces M2*12+3mm brass male-female standoff 10 Pieces M2*15+3mm brass male-female standoff 10 Pieces M2*18+3mm brass male-female standoff 10 Pieces M2*20+3mm brass male-female standoff 10 Pieces M2*25+3mm brass male-female standoff 90 Pieces M2x3 Screws 90 Pieces M2 Nut Note: 1.We provide clear pictures, measurements where possible. Please check as much as possible to make sure the item is the one that you need. 2. Please allow 0.5-1 inch difference due to manual measurement.(1 inch=2.54cm) 3. Instruction is not included.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please understand,Thank you