Threaded Steel Fasteners for Safety

Fastening threaded fasteners are a kind of parts that connect objects by threaded matching. Fastening threaded fasteners refer to objects that are connected by threaded matching, including screws, bolts, nuts, etc. 2. Threaded fasteners can be divided into two categories according to their use: mechanical fasteners and structural fasteners. Mechanical fasteners: generally used in machine manufacturing,Bolt principle,  Fufeng Bookstore, Bolt principle, Introduction to the first correct tightening What is a bolt connection The function and working principle of bolts and nuts Summary of bolt connection with gasket.The threaded steel fastening device of the present invention comprises a base plate, a motor, a driving gear, a driven gear and a handle, wherein the driven gear meshes with the driving gear; the characteristics are that: an annular guide groove is provided on both sides of the driven gear, and a U-shaped bracket fixed on the base plate is provided on both sides of the driving gear.