Gripco offers both a Class 9 Standard Series and Class 9 Counterbore Series of metric hex pilot projection weld nuts manufactured from low-carbon steel for use with Class 9.8 bolts. Gripco also offers Grade B pilot projection weld nuts for use with Grade 5 bolts and a Standard Series manufactured from low-carbon steel for use with Grade 2 bolts.
Gripco pilot projection weld nuts are engineered for positioning in pierced or drilled holes. The pilot eliminates the need for expensive jigs or centering devices and helps reduce welding splatter from entering the nut threads.
Three and six projection types provide a non-rocking, firm current connection during welding. The mass of the projections is increased in proportion to increased pilot heights to assure weld on thick or thin metals.
Gripco's engineering staff can assist you in determining the exact requirements for your fastening needs.