Roller Chain; BL644 Chain Size; Riveted 4X4 Lacing; 3/4" Chain Pitch; Leaf Chain Series; 1 Strand; Steel; Leaf; 0.127" Plate Thickness; 0.717" Plate Height; Curved; 0.312" Pin Diameter

Roller Chain; BL644 Chain Size; Riveted 4X4 Lacing; 3/4" Chain Pitch; Leaf Chain Series; 1 Strand; Carbon Steel; Leaf; 0.13" Plate Thickness; 0.713" Plate Height; Curved; 5/16" Pin Diameter

Roller Chain; BL644 Chain Size; Riveted 4X4 Lacing; 3/4" Chain Pitch; Leaf Chain Series; 1 Strand; Steel; Leaf; 0.127" Plate Thickness; 0.717" Plate Height; Curved; 0.312" Pin Diameter