Features 1、Made of iron material and the surface is galvanized, strong and durable, has a long service life. 2、Great workmanship, perfect replacement for the old one, with clear threadand very practical. 3、There is a box that can store nuts, easy to carry and store, convenient to use and with good performance. 4、A large number, can meet your use and replacement needs, very practically. 5、Strict quality control and quality assurance, high safety factor, can be used with peace of mind. Specification Item Type: Hex Socket Drive Insert Nuts Set Product Material: Iron galvanized Product Model: M4/M5/M6/M8/M10 Package List 30 x M4 x 10 Nuts 30 x M5 x 10 Nuts 15 x M6 x 10 Nuts 15 x M6 x 15 Nuts 5 x M8 x 20 Nuts 5 x M10 x 25 Nuts