Sherex by PEM's full hex body, large flange full metric rivet nuts are perfect for applications in high clamp load environments. Full hex body rivet nuts are the highest perfoming rivet nuts with their ability to resist pull out, spin out, and torque out compared to round body rivet nuts. Closed end rivet nuts will eliminate dust and liquid from entering through the threads of the rivet nut. Available in M4 - M12 thread sizes.