Quick Detachable Bushing Bushing Type Quick Detachable Bore Bushing Series F Bore Diameter 3 1/8 in Length 3.625 in Bolt Circle Diameter 5.625 in Bolt Size 9/16 In.-12 x 3-5/8 in System of Measurement Standard Includes Cap Screws Material Iron SAE Grade 5 Taper 3/4 in per ft On Diameter