Decription

We have gained a remarkable position in the industry by offering a qualitative assortment of SEMS Screw. The offered screw is manufactured using high-end technology and best quality metal alloy in adherence to industry distinct guidelines. Apart from this, the entire range is scrupulously tested under the strict inspection of our quality examiners. This screw can be availed from us in different specifications at market leading prices.

SEMS are a Screw / Bolt combination with a permanently attached washer or set of washers. It is also called as washer assembled screw, captivated washers, Screw washer assemblies, bolt washer assemblies, combi screws or combi bolts. The word SEMS originates from The Illinois Tool Works Inc., who made machines that produced pre-assembled screw and washers. In spite of the original patents and trademarks, the word SEMS is generally recognised as a generic term applicable to screw and washer assemblies. The washers are assembled on the bolt or screw blanks before threads are rolled. Since the outer diameter of the threads are higher than the inner diameter of the washers, which does not allow washers to come out.