Lincoln Electric 9SS31350-17 S31350-17 #4-40 LOCKNUT NYLON INSERT [5] Sale Price: $3.00 Original Price: $3.45 #4-40 LOCKNUT NYLON INSERT [5] PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 5 Quantity: Add To Cart Added! #4-40 LOCKNUT NYLON INSERT [5] PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 5