Plastic Hoods - Economy Range. A range of rear entry plastic Backshell Hoods form MH Connectors with 2-part screw together construction. Manufacturers Part Numbers: MHCCOV-xxSC-BK are coloured Black with two short 4-40 UNC jackscrews. MHCCOV-xxSC-LG are coloured Light Grey with two short 4-40 UNC jackscrews. MHCCOV-xxSCL-LG are coloured Light Grey with two long 4-40 UNC jackscrews.