Sprocket Bore Diameter 1 in For Chain Pitch 3/8 in For Number of Strands Single Hub Type One Side Material Steel Maximum Bore Diameter 1 in Number of Teeth 32 Outside Diameter 4.03 in Pitch Diameter 3.826 in Bore Type Fixed Chain Number 35 Finish Black Oxide Hub Diameter 2 in Hub Projection 0.707 in Includes Set Screws Keyway Yes Keyway Depth 1/8 in Keyway Width 1/4 in Length through Bore 7/8 in Number of Set Screws 2