What are the models and specifications of self-locking tuning screws commonly used in 5G equipment?

There are many types of self-locking tuning screws commonly used in 5G equipment. The following are some common types:

M2-M8 series: This is a common thread specification range. For example, the self-locking tuning screw of 5G filter produced by Suzhou Maite Technology Co., Ltd. has M2.5 specification, and also covers other specifications between M2 and M8.

Screw with pitch gradient structure with thread diameter ≤M5: The nominal diameters of the upper and lower ends of this screw are the same, and it gradually changes from standard pitch from bottom to top, and the pitch can be increased or decreased in the gradual change process, which is convenient for generating self-locking force. It is suitable for 5G metal cavity filters and other equipment.

M1.2x1.2-M5x100 series: Silver-plated tuning stop screws of Suzhou Xiongyun Fastener Technology Co., Ltd., whose thread specifications range from M1.2x1.2-M5x100, the materials used include stainless steel, low carbon steel, medium carbon alloy steel, etc., and the surface treatment includes zinc plating, zinc-nickel alloy, zinc-aluminum coating, silver plating and gold plating.