Used in applications with nuts and bolts. The flat washer provides a greater bearing surface which helps prevent a nut or bolt head from tearing through the material. Flat washers are commonly used in decks and fence building. The called out size is the I.D. meter of the washer.
California residents: see Proposition 65 information
- Use with nuts and bolts of the same diameter and finish
- Zinc-plated finish
- 5/16 in. I.D.
- 7/8 in. O.D.