Product Description Description: Alcoswitch • Knobs • Shaft Size (mm [in]): 3.17 [0.125] • Knob Design: Straight Knurl • Diameter (mm [in]): 12.70 [0.500] • Indicator Location: Top • Indicator Style: Arrowhead Product Information ResourcesManufacturerTyco Electronics Product Category KnobsProduct Sub Category Straight Knurl KnobsSeries Product Videos Custom Field Product Reviews