Features 1,Made of 304 stainless steel material, the 304 stainless steel material provides strength and offers good corrosion resistance in many environments. 2,Great for use in confined areas where the head needs to be flush or below the surface. 3,Well packed and assorted in a transparent plastic box for convenient use and storage. 4,There are several common lengths in this set for general purpose use which will meet daily basic needs. 5,Used widely in the home and office appliance, communication equipment, ship assembly and other machinery industry. Specification Features: Made of 304 stainless steel material, the 304 stainless steel material provides strength and offers good corrosion resistance in many environments. Great for use in confined areas where the head needs to be flush or below the surface. Well packed and assorted in a transparent plastic box for convenient use and storage. There are several common lengths in this set for general purpose use which will meet daily basic needs. Used widely in the home and office appliance, communication equipment, ship assembly and other machinery industry. Specification: Material: 304 stainless steel Size and Quantity: M3x5 20PCS M3x6 20PCS M3x8 20PCS M3x10 20PCS M3x12 20PCS M3x14 20PCS M3x16 20PCS M3x20 20PCS M3 Nuts 180PCS Package list: 1 box x Fasteners Package List Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.