Step screws refer to non-standard screws with more than two steps. We call them step screws. This kind of stepped screw is generally not available in stock, and it will only be available after the mold is opened. Step screws include non-standard step screws, stainless steel step screws, inner hexagon step screws, m4 step screws, outer hexagon step screws, stainless steel hexagon step screws, cross pan head step screws, etc.
As a hardware fastener directly tapped into the workpiece, the step screw has the functions of tapping, locking and fastening. The hardness of the step screw also needs to reach its request, so that it will not be excessively forced during use. Or the workpiece is too hard, causing the screw to bend or deform.
Non-standard stepped screws are used for stepped screws that do not fall within the national standard. Uncommon sizes are generally used for applications with fewer components. Step screws are suitable for a variety of communication products, electronic instruments, meters, computers, digital products, home appliances, electric toys, multiple types of movement and other fine organizations. Of course, they are also used in mechanical equipment, water conservancy projects, room decoration, ships, vehicles, etc. . The use of step screws can save costs and provide a convenient connection plan.
Regarding the question of whether the stainless steel screw is hard or the iron screw is hard, it mainly depends on the material of the stainless steel screw, and also the grade of the iron screw. Stainless steel screws are 201, 304, and 316. The strength grades of iron screws are 4.8, 8.8, 10.9, and 12.9. If this is clear, the question of whether stainless steel screws are hard or iron screws is good. But the question originally asked was unreasonable. Hardness is not at all. To compare the hardness, the method is to pass the hardness tester to test the hardness of the stainless steel screw and the hardness of the iron screw together. The results of the test are comparable.
Step screws are suitable for various communication products, electronic instruments, meters, computers, digital products, home appliances, electric toys, various types of movement and other fine organizations. Of course, they have also been used in mechanical equipment, water conservancy projects, room decoration, ships and vehicles, etc. High-tech products above. The use of step screws directly reduces costs and provides a more reliable and convenient connection plan