Worm Gear Clamp #56 620 SERIES 3-1/16=4

Worm Gear Clamp, Series: 620 Series, 3-1/16 in Nominal, Minimum Clamp Diameter: 3-1/16 in, Maximum Clamp Diameter: 4 in, Stainless Steel, 5/16 in Bolt, Number of Bolts: 1, 1/2 in W, 60 mm THK, Additional Information: #56 SAE, 2.000 lb Weight