Thread Size: M20 X 1
Nominal Thickness - Inch: 0.512
Nominal Thickness - Millimeter: 13
Inch - Metric: Metric
Outside Diameter - Inch: 1.752

Other Features: One Piece Split | M6 Clamp Screw
Outside Diameter - Millimeter: 44.5

Thread Size: M30 X 1.5
Nominal Thickness - Inch: 0.406
Nominal Thickness - Millimeter: 10.3
Inch - Metric: Metric
Outside Diameter - Inch: 1.752

Other Features: Mild Steel | Mechanical Lock | Three 10-32 Set Screws
Outside Diameter - Millimeter: 44.5

Thread Size: M30 X 1.5
Nominal Thickness - Inch: 0.559
Nominal Thickness - Millimeter: 14.2
Inch - Metric: Metric
Outside Diameter - Inch: 1.752

Other Features: Hardened Steel | Mechanical Lock | One Piece Solid | Three 10-24 Set Screws
Outside Diameter - Millimeter: 44.5