8 Threads per Inch; 8-21/32" Outside Diameter; 1.073" Nominal Thickness; 6.659-8 Thread Size; 6-37/64" Thread Pitch Diameter Min; 6.587" Thread Pitch Diameter Max; W-34 Lockwasher Part Number; UNS Thread

Shaft Collar; 2-5/8" Bore; 3-7/8" Outside Diameter; 7/8" Width; 3/8"-24 X 1" Screw; Carbon Steel; Black Oxide Finish; 1 Piece Split

Roller Chain; 05B Chain Size; Riveted; 8MM Chain Pitch; Standard Chain Series; 1 Strand; Carbon Steel; ISO; 4.978MM Roller Diameter; 2.997MM Roller Width; 0.737MM Plate Thickness; Curved; 2.286MM Pin Diameter

Shaft Collar; 2-3/4" Bore; 4" Outside Diameter; 1-1/8" Width; 1/2"-13 X 1/2" Screw; Carbon Steel; 1 Piece Solid