Premium MaterialThe round head screws nuts and washers are made of outstanding metal material with smooth edges, which are resistant to rust, sturdy, have good corrosion resistance in the bad environments, and durable for long time use. Easy to UseThe screw set assorted is easy to use. Compact and force uniform screw thread, not easy to deform and slid while using. The smooth edges of nut and bolt sets won't hurt your hands when you use them. Easy to StoreVarious sizes of M3 M4 M5 screws with matching nuts and washers, totally 12 type models. The silver pan head screws nuts washers with a transparent storage case to store them in order, for quick access and protection. Wide ApplicationsFrom furniture repair and plumbing to woodwork and other DIY projects. Ideal for use by a variety of workers and repairmen from plumbers to assemblymen both professional and amateur. Great for industry, home supplies, construction, furniture, car, motorcycle, machine, etc. What You Will GetYou will get 12 kinds of screws, in the size of m3, m4, m5; 3 kinds of nuts, and 3 kinds of washers; enough for daily use, and meet your different needs in daily life.