The Jack-Nut® Threaded Insert is an economical blind fastener designed for assembly-line use in thin, soft, or brittle materials. When tightened, the body collapses to form legs which grip the inside of the mounting surface, leaving a permanent, reusable threaded insert. Available in steel, brass, and steel with PVC or Raintite coating. Standard Jack-Nut Threaded Inserts are manufactured of steel with commercial zinc plating. Brass is available upon special request (brass requires a 25,000 piece minimum order.)
All Jack-Nut Threaded Inserts can be supplied with coated flanges. Two types of coatings are offered. The first, called Raintite®, is used for sealing ambient moisture. The second is a hard plastic coating (PVC) which ...