Lincoln Service Parts 2 › Lincoln Electric 9SS31226-154 M6-1 HEX LOCK NUT [15] S31226-154 Lincoln Electric 9SS31226-154 M6-1 HEX LOCK NUT [15] S31226-154 Sale Price: $2.74 Original Price: $3.15 M6-1 HEX LOCK NUT [15] PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 15 Add To Cart Added! M6-1 HEX LOCK NUT [15] PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 15