SZHKM 480Pcs Assortment Socket Machine Review

【Quantity】SZHKM bolts and nuts screws set is 480 pieces, M3,M4,M5 screws, 8-20mm,12 kinds of model.This machine screws assortment kit include nuts for three different purposes(attached with three matching wrenches),all these bolts and nuts kit are put into a plastic tool box,and a corresponding label,easy to take and storage,which make you improve work efficiency. 【Widely used】Our M3 M4 M5 screws and nuts assortment kit has a widely range of applications.It’s suitable for electronics,3D printers,robotics,power supplies,knife ,motorcycle,make battery powered fan,secure the fan to the base, bike repair. These metric bolts and nuts assortment also suitable for various precision mechanical instruments, electronic products, household appliances, communication equipment, toys, meters, etc. M3 hex bolts is used by professional and DIY enthusiasts, repairment. 【Materials】These assorted nuts and screws set made of high quality 12.9 grade alloy steel. Our product has very good strength and corrosion resistance, which can adapt to various weather temperatures and changes, including all kinds of wet or dry weather.also ensures the durability of these m3 screws metric bolt assortment, which can be used for a long time without frequent replacement. 【Exquisite workmanship】Our m3 screws, m4 screws and m5 screws threads are very smooth, sharp and accurate. It is not easy to deform and slide in the working process. The use of hexagonal drive will make it easier for you to use. Our m3 screws and nuts meet the standard metric system. 【Environmental protection material】SZHKM m5 m4 m3 bolts and nuts assortment kit are made of high quality 12.9 grade alloy steel, environmentally friendly, mercury-free and non-toxic. During use, substances are released to ensure your safety.