Quick Detachable Bushing, Bushing Type Quick Detachable, Bore Bushing Series E, Bore Diameter 38 mm, Length 2.625 in, Bolt Circle Diameter 5 in, Bolt Size 1/2 In.-13 x 2-3/4 in, System of Measurement Metric, Includes Cap Screws, Material Iron, SAE Grade 5, Taper 3/4 in per ft on Diameter.