M3 Black Hex Socket Cover Head Screw s Set 12.9 Grade Alloy Carbon Steel DIN912 4 50mm, Full Thread，Plain Finish (M3x50mm 24Pcs)

HIGH QUALITY -- M3 Black Hex Socket Cover Head Screw s Set are made of high quality Alloy Carbon Steel. The Alloy Carbon Steel material features strength and offers good corrosion resistance in bad environment like high temperature, cold weather, and high humidity areas. They have superior rust resistance and the excellent of oxidation resistance, which can ensure long time using SAFETY AND SWEET -- Our M3 Black Hex Socket Cover Head Screw s adopts high quality material, which is environmental protection and non-poisonous. In the process of using, there are no toxic substances releasing to ensure your safety Pointed THREAD -- Our screw thread is very sharp, clean and accurate. And the compact thread is not easy to out of shape and slid in the process of rolling. Our screws s accord with standardized metric system WIDE APPLICATION -- M3 Black Hex Socket Cover Head Screw s are great amateurs, landlords, handymen, repair men, women, woodworking, construction, plumbing, HVAC and so on. They also worked well for printed projects. The kit is perfect to replace broken lost. Use on sheet metal and wood. The Kit is an ideal tool for home and workplace, too. A variety of sizes can meet the maximum of requirement for you GOOD STORAGE AND ASSORTMENT -- Useful assortment and come on a very nice case. There are 17 M3 popular sizes for your choices. All of screws will be packed in a durable transparent plastic box with specification label. The box also can be used for a storage box