0000076282 2021-03-11 2021-03-11 0000076282 2021-03-11 2021-03-12 0000076282 false 8-K 2021-03-11 000-03134 PARK-OHIO HOLDINGS CORP. OH 34-1867219 6065 Parkland Boulevard, Cleveland, OH 44124 440 947-2000 Common Stock, Par Value $1.00 Per Share PKOH NASDAQ false false false false false