What are Sems Screws?
Sems screws are often called:
Captivated Washers,
Screw Washer Assemblies or
Combi Screws
They are a combination of a screw or bolt with a built in washer or set of washers. We have the ability to make almost any type of washer and screw combination to your specification.
The technology has been around for about 50 years and the product has brought benefits to assembly lines the world over.




