There are many reasons why machine screws are in widespread use as a precision fastening as they come in a wide variety of fittings, including pan, pozidrive and slotted heads, with flush mounting or countersunk options being available.
Whilst typically they are made of stainless steel they also come in zinc plated and brass fittings. They come with coarse threads (24 threads per inch) and fine threads (32 threads per inch), and the grade of thread used will depend on their application.
Whilst they may look similar to self tapping screws, unlike self tappers they need a precise thread making … Read the rest of this post
