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Referenced on: http://operatormanuals.tpub.com//TM-9-2330-271-14-P/TM-9-2330-271-14-P0389.htm
A metallic headed fastener having internal threads for a portion of the full length. It may have a smooth, hexagon or splined shank with an open or closed end. It is designed to be expanded tightly against the material it is being installed in by means of a special tool. The item must have a specified grip range. The grip range is the thickness of the material the item is being installed in. An integral feature is incorporated for locking on the threads of a mating member.
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