Lincoln Service Parts 2 › Lincoln Electric 9SS31225-4 NUT, THUMB, 3/8-16 S31225-4 Lincoln Electric 9SS31225-4 NUT, THUMB, 3/8-16 S31225-4 Sale Price: $15.54 Original Price: $17.87 NUT, THUMB, 3/8-16 PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! NUT, THUMB, 3/8-16 PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1