Immersion Well, Bulb Length 4 11/16 in, Connection Material Stainless Steel, External Thread Size 1/2 in, Inside Diameter 0.26 in, Internal Thread Size 1/2 in, Maximum Insertion Length 2 3/8 in, Shank Material Stainless Steel, Direct Mount with Setscrew, Application General Purpose, Insulation Depth 2 1/8 in, Overall Length 4 11/16 in