JLG Parts Hardened Metric 16mm Washer for use on various JLG Boom, Scissor, and Telehandler Machines. This hardened washer has an I.D. of 18mm, an O.D. of 32.4mm, and a Thickness of 3.1mm. It is used in various applications such as the washer on the motor mount bolts to the washers used on the attachment coupler of certain telehandlers. Please ensure proper model and serial range before parts purchase.