There are many types of screw connections in precision machinery and instruments. Commonly used are cylinder head anti-theft screws, spherical cylinder head screws, and countersunk screws. Cylinder head screws are one of the most widely used screws. Enlarging the diameter of the screw head can incre... read more
Terminology of self-tapping screw connection strength (1) Screw-in torque The screwing torque is the torque required to screw the screw into the threaded bottom hole of the pillar to form a matching thread within the required screwing length. It consists of two parts, namely friction (this is the ma... read more
As there are many types and models of screwdrivers, the appropriate screwdriver should be selected according to the width and shape of the notch of the anti-theft screw head. That is, according to the different sizes of each notch, specific specifications such as micro, small, medium or large can be... read more
Self-tapping screws are generally used in groups, so in addition to the correct design of a single connection, the connection design of more than two screws must be considered. The design of the screw connection group should consider the following issues. ①In order to reduce the design workload, an ... read more
There are many types of threads, and different internal and external thread profiles can be selected according to the purpose of the thread. The common typical threads are as follows 1. Round thread The screwed state of the external thread and the internal thread The tooth profile of the round threa... read more
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