219 Pcs Round Head Nuts and Bolts M4 M5 M6 Threaded Button Hex Socket Screws Alloy Steel Allen Hexagon Mushroom Machine Screw Assortment Set Kit with Wrench (Black)

【Material】Hex socket round head bolts and nuts set are made of 10.9 grade alloy steel with black plated, which has the advantages of strength and offers good corrosion resistance in bad environment 【3 Sizes】Total 219 pcs button head screw assortment. Includes M4/M5/M6, length sizes of 8/16/25mm hex socket round head bolts screws nuts, 3 allen wrenches 【Easy to Install】With the hexagonal groove, it is not easy to slide, it is easier to install and saves time 【Wide Application】Widely used in the home and office appliance, communication equipment, ship assembly and other machinery industry, furniture, car and motorcycle repair and DIY inventions, industrial and construction fasteners, etc 【Convenient storage】Each sizes of metric screws and nuts are individually stowed by type in an easy to carry clear case. Easy to store and use, so that the screws will not be lost or mixed up during use