Japanese iiFAS Rolls out Iron Chromate Plated Snap Nut Washer

The product was released in March. It has a insert-type nut that can horizontally snap onto a bolt. Previously the company has released SUS304 anti-loosening insert-type washer. This time the company adds the iron chromated plated version. Here is how to use the product: (1) Insert two washers onto a bolt  (2) Use tools like a plier to close the snap nut (3) Finish fastening with a spanner.