Whether you are working on a collapsible workbench in the yard, or a heavy duty bench in the shop, this versatile clamp can make your task easier. Ideal for securing awkwardly shaped items to the bench top when clamps won’t reach or will simply get in the way. These hold-downs mount through a 3/4" diameter hole, have a clamping capacity of 4-1/2", (less the thickness of the benchtop of course), and the 4-1/2" long jaw can provide up to 100 pounds of clamping force. A quick acting cam applies clamping pressure to the padded jaws, while the quick release nut and threaded shaft allow for easy adjustment to a variety of benchtop thicknesses. Made in Taiwan of tough glass filled nylon. Set of 2.