MH Connectors Zinc Nickel Plated Hoods, Rapid Assembly, MHDTZK Series. A range of Zinc, Nickel Plated Hoods from MH Connectors. These Rapid Assembly Backshells are re-openable. A multi diameter ABS grommet Strain Relief provides a secure termination to the Hood for cables up to 13 mm Outside Diameter. Full metal UNC 4-40 threaded Jackscrews are supplied with these Rapid Assembly Backshells.