Pedal Crank Thread Repair Bush Bushing Insert 9/16-20 BSCY x 5/8-24 UNEF

Internal thread is 9/16" x 20 TPI BSCY (standard pedal thread). External thread is 5/8" x 24 TPI UNEF. Left hand bush has a left handed/counter clockwise thread and fits a bicycle's left crank. Right hand bush has a right handed/clockwise thread and fits a bicycle's right (chainside) crank.

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