Stud: 1.unequal long stud: It is suitable for the case where one end is screwed into the component body for connection or fastening. See GB897-900 and so on. 2.equal length studs: suitable for matching the ends with nuts...
1.Considering the work efficiency of processing and assembly, the types of standard parts should be minimized in the same machinery or engineering. 2.From the perspective of economic considerations, commodity standard pa...
Standard fasteners are divided into ten categories. The selection should be based on the use of standard fasteners and their use. 1.Bolt: Bolts are generally matched with nuts (usually with a washer or two washers) for c...
Before describing the heat treatment of threaded fasteners, it is necessary to understand the basic profile, diameter and pitch, basic dimensions and thread tolerances of the threaded fasteners. Because the geometric acc...
Insufficient fastener engagement length After the fasteners are tightened, it is required to expose 2 to 3 threads. Otherwise, there is a risk of slipping or not sticking. Such design changes are generally to replace the...
(a) High grades can replace low grades; (b) Fine tooth products can replace coarse tooth products; (c) The assembly may replace a single piece; (d) The inner plum blossom can replace the cross recess; (e) PT teeth can re...
