Lincoln Service Parts 2 › Lincoln Electric 9SS19580 HEX LOCKING NUT 7/16-20 S19580 Lincoln Electric 9SS19580 HEX LOCKING NUT 7/16-20 S19580 Sale Price: $6.39 Original Price: $7.35 HEX LOCKING NUT 7/16-20 PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! HEX LOCKING NUT 7/16-20 PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1