These are the second version of Visegrips. The first was a set with Visegrips on all four ends that used a double nut to hold the cable lug on the adjusting screw. While they held just as well, adjusting the jaw width was a pain. With the cable lug tight on the adjusting screw the whole Visegrip had to be spun to set the jaw width. On the more recent set, one of the rivets was removed so the lug could be fastened via a through bolt. That left the adjusting screw unmolested.