Lincoln Service Parts 1 › Lincoln Electric 9SM25241-1 LOCK NUT M25241-1 Lincoln Electric 9SM25241-1 LOCK NUT M25241-1 Sale Price: $54.99 Original Price: $63.24 LOCK NUT PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! LOCK NUT PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1