Special Features:

Back side of the nut is 0.372 to 0.373 inch outside diameter for a length 0.108 inch; hex head side has 2 - 0.034 to 0.040 diameter holes located 0.05 down fr0m the top of the hex head and 0.06 in from the outside edge for a lock wire

Properties:

A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)