Lincoln Service Parts 2 › Lincoln Electric 9SS19959-3 HEX LOCKNUT [5] S19959-3 Lincoln Electric 9SS19959-3 HEX LOCKNUT [5] S19959-3 Sale Price: $4.74 Original Price: $5.45 HEX LOCKNUT [5] PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 5 Add To Cart Added! HEX LOCKNUT [5] PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 5