4inch: Overall Length: 100mm/3.94inch, bottom length: 53mm/2.08inch, hole pitch: 28mm/1.10inch
5inch: Overall Length: 128mm/5inch, bottom length: 63.1mm/2.48inch, hole pitch: 36.7mm/1.44inch
6inch: Overall Length: 152mm/6inch, bottom length: 73.9mm/2.91inch, hole pitch: 43mm/1.69inch
8inch: Overall Length: 200mm/8inch, bottom length: 85mm/3.35inch, hole pitch: 49mm/1.93inch