Why is the nylok patch point of the m4 brass countersunk machine screws in this place?

Mr. Han asked the screw to be electrically conductive, and the copper screw just met the requirements of Mr. Han. Mr. Han put the drawings of the m4 brass countersunk machine screws and asked if we could produce according to his drawings.

In the drawings of Mr. Han, we found that the position of the nylok patch of the m4 brass countersunk machine screws is a little different. Generally, the nylok patch is placed in the middle of the thread or where the thread is near the thread tail. However, Mr. Han’s position of the nylok patch is the point where the thread below the head begins.

Then we asked Mr. Han why he had the teflon paste here. Mr. Han said that he felt that this would better lock the screws and make the screws not fall out easily. After knowing Mr. Han’s request, we suggested that Mr. Han change the position of the teflon paste to the bottom of the thread so that it can be locked better. The m4 brass countersunk machine screws will not fall out so easily. If the teflon paste is at the top of the thread, this will increase the resistance of the screw and it will not be screwed in at that time.

Mr. Han said that the position of the teflon paste can be changed and asked what kind of teflon paste is used. We talked to Mr. Han that it is a chemical nylok patch. Mr. Han said that it can be used.

If you want to customize m4 brass countersunk machine screws, please send an email: annie.li@szsst88.com