Hand Knob Handle Type 4 Point Handle Material Brass Polypropylene Mounting Type Threaded Insert Thread Size 3/8 In.-16 Handle Dia 2-1/2 in Base Dia 1 in Overall Height 1.1300 in Tap Type Quick Release Includes - Standards - Color Black Features For Fast Adjusting When Knob Must Be Completely Removed After Releasing and Refitted Very Rapidly for Re-Clamping Knob is Tilted Over Top of Threaded Spindle and Can Be Adjusted Rapidly to Necessary Position Finish -