Thread Size: 3.25-16
Threads per Inch: 16
Nominal Thickness - Inch: 0.813
Nominal Thickness - Millimeter: 20.65
Inch - Metric: Inch

Outside Diameter - Inch: 4.5
Other Features: Self Locking
Outside Diameter - Millimeter: 114.3

Thread Size: 3.25-16
Threads per Inch: 16
Nominal Thickness - Inch: 0.76
Nominal Thickness - Millimeter: 19.304
Inch - Metric: Inch

Outside Diameter - Inch: 4.5
Outside Diameter - Millimeter: 114.3