Meter Screw with plain washer and spring

Meter screw can be made from Brass as well as Mild Steel. In These type of screws Once rivet are manufactured first of all one spring washer is inserted then a working spring is inserted and then another plain washer is inserted. Then threading is done measuring required length after assembling of washers and spring in such a way that the spring works as per specification. This can be also called as working spring screws. These are customized screws. Then a nut is inserted below so the fitment remains perfect.