Using snaps has long been the most common way of making a grounding connection (wrist straps, ground cords, etc) in ESD control products, but snaps have some drawbacks. Snaps can be easily unsnapped or damaged, and they are not normally used for making an electrical connections. Desco manufacturers a better design that is more durable and cannot be easily disengaged.
The design used in Desco’s dome style ground cords is made with a 10mm (0.395 in.) male threaded snap. Dome style ground cords are sometimes called a Floor Mat Ground, but they can be used on work benches too. With a screw and washer installed from the backside of the mat, the ground cord can be secured to the mat to reduce the opportunity for the mat to become ungrounded.
See a better way to connect in this video.