Click to expand Tap to zoom 40A18H-SB Type A Plate Sprocket for #40 Roller Chain - 18 Tooth - 5/8" Stock Bore Sale $16.20 SKU 40A18H-SB Quantity One - $16.20 Price Each on 2 to 4 - $14.58 Price Each on 5 or More - $12.96 Quantity Discounts Quantity One Price Each on 2 to 4 Price Each on 5 or More 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart 40A18H - SB (5/8") Bore Heat Treated Type A PLATE Sprocket for #40 Roller Chain 18 Tooth Outside Diameter = 3.140" Pitch Diameter = 2.879" Free shipping in the USA!