Lincoln Service Parts 1 › Lincoln Electric 9SM17960-6 SELF LOCKING RING M17960-6 Lincoln Electric 9SM17960-6 SELF LOCKING RING M17960-6 Sale Price: $5.94 Original Price: $6.83 SELF LOCKING RING PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! SELF LOCKING RING PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1