3/8 x 4" Effective Length Knob Detent w/ a 2" T-Knob (1 Pack)
3/8 diameter x 4" usable length Stl Zinc Pin w/ 2" Black T-Knob Used on Weight Stacks
3/8 diameter x 4" usable length Stl Zinc Detent Pin 2" Black T-Knob
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MRO & Co by Innovative Components
{"Manufacturer": "Innovative Components", "Item model number": "KN6X4000T7-X-21", "Date First Available": "January 24, 2012"}