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1. First, remove the sludge on the surface of broken screws and broken ends and bludgeon the center of the section to death. Then, install a 6-8mm diameter drill bit with an electric drill to drill the center bludgeon hole. After the hole is drilled, remove the small bit and replace it with a 16 mm
Fastener screws need to be inspected before or after production before they can be formally put into use. Therefore, in order to get better use effect of fastener screws, we must be careful and careful when carrying out these inspections. According to the summary experience, China Standard Parts Net
01 Advantages of cold headingHigh utilization rate of steel: cold heading (extrusion) is a kind of less, no cutting processing method, such as processing rods hex head bolts, cylindrical head hex screws, using the cutting method, steel utilization rate is only 25% ~ 35%, and with cold heading (extru
In the process of using fasteners, many people think that a small fastener replacement will not make a big difference. As everyone knows, this idea is not correct. Fasteners, as important parts of machinery, must be installed strictly in accordance with the requirements of different types in the pro
Threaded connection is a widely used detachable fixed connection, has the advantages of simple structure, reliable connection, convenient assembly and disassembly, widely used in mechanical equipment. One, double bolt assembly