HLB-22SS HEICO Fastening Systems HEICO-LOCK Washers , Manufacturer Part#: HLB-22SS , Manufacturer: HEICO Fastening Systems , Brand: HEICO-LOCK Washers , UOM (Inch or Metric): Metric , Material: Stainless Steel , Finish: AISI 316L , Bolt Size: 7/8 Inch UNC (M22) , Inside Diameter: 0.920 Inch (23.40mm) , Outside Diameter: 1.650 Inch (42.00mm)