Lincoln Service Parts 2 › Lincoln Electric 9SS35312 4000 SERIES - BONNET WRENCH S35312 Lincoln Electric 9SS35312 4000 SERIES - BONNET WRENCH S35312 Sale Price: $13.18 Original Price: $15.16 4000 SERIES - BONNET WRENCH PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! 4000 SERIES - BONNET WRENCH PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1