Metric Double Screws

A machine screw and free-spinning lock-washer manufactured as one assembly. Steel SEMS are available with the following types of washers: internal tooth, external tooth, split-lock washer, and square cone. Stainless SEMS are offered with external tooth lock washers.

Unsure which fastener is best for your job? Call us at 866-501-9504 or Contact Us and one of our trained technicians will help you find the right metric fasteners for your application.