Standard Clecos are 1/8" and 3/16" and those are available in Kits. Different sizes are available to suit the needs of almost any application. We also offer the Wing Nut Clecos where high clamping force is required (0-300 lbs.), as well as the ever popular Side Grip Clamps. All clecos offered are made in the USA. Clecos are used to hold sheet metal together for riveting, also called sheet holders or temporary sheet metal fastener.