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, , 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 : 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.