The main usage however is to use the screw in its traditional form and have a drilled hole into the base item into which a thread is tapped, the machine screw then is pushed through a hole in the top piece of metal and into the threaded hole in the base item and screwed until tight to make a secure fixture.Machine screws seem to be one of those materials which almost defy their name and appear to have fallen into a category because it happened to be available rather than it was designed especially for these screws with any distinct machine application.
The use of machine screws has become ever more popular over the years, because of the integrity of the fixing, the cosmetic finish and are now available in a complete range of sizes either with a countersink head or pan headed dependent on the application. A good supplier will advise on the various options which are available in order to get the best type of screw for the job. The screws are such that the screw thread is cylindrical and does not taper to a point in the manner normally associated with a screw thus it is possible to fit a nut and use it as a nut and bolt. There is also a complete range of tightening systems from a typical posi-drive to a complete range of security fixings requiring a special screwdriver to tighten or loosen.
The joint is very strong and can of course be Custom CD Pattern Screws tightened from one side. Machine screws are very often made from stainless steel or high quality steels so that they are capable of making a strong joint and also being capable of protecting against corrosion and presenting a good solid finish. The machine screw system is one which is far more secure than the self-tapping screw joint but this is an area where the two fixings can overlap and it is an area where the machine screw is becoming more popular due its versatility and strength of joint.
Firstly the machine screw can work as a screw or it can work as a bolt with nut attached dependent on its final application. The finish is obviously required to be good as the screws are usually on view and rarely hidden. This makes it an ideal fixing for all types of metal fixings, particularly for cabinet fixings and external plate fixings such as face plates below which mechanical or electrical equipment is fixed.
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