Click to expand Tap to zoom 40A20H-SB Type A Plate Sprocket 20 Teeth for #40 Roller Chain Sale $11.90 SKU 40A20H-SB Quantity One - $11.90 Price Each for 2 to 4 - $10.12 Price Each for 5 or more - $8.93 title Quantity One Price Each for 2 to 4 Price Each for 5 or more 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart 40A20H - SB (5/8)" Bore Heat Treated Type A PLATE Sprocket for #40 Roller Chain 20 Tooth Outside Diameter = 3.46" Pitch Diameter = 3.196 Free shipping in the USA!