Amphenol Pcd's Grommet Nut provide a good holding force for a crimp connector when expensive and heavy backshells are not used. Such holding force is essential to hold the contacts and grommet in place when terminated with wire bundles. Downloads: QPL Backshell Catalog Non QPL Catalog 1 of 2 Non QPL Catalog 2 of 2 QPL Backshells Accessories