Whether for home, farm, builder or industrial customers, National has all the right hardware in the sizes and finishes you need. With over a century of service National is committed to maintaining the highest level of product quality, innovation and manufacturing technology providing a reliable barrier against unauthorized entries. Barrel bolts add additional security and are made in standard, heavy duty or extra heavy duty versions for indoor and outdoor applications. A proprietary Weather Guard zinc coating is three times more corrosion resistant compared to the competition.
- 3 in. chain bolt in zinc plated for use on cabinet, double screen, garage and industrial doors
- Can be used on doors opening in by reversing the square bolt
- Equipped with a strong hand-drawn wire spring which throws the bolt automatically when chain is released
- Full 24 in. long chain
- Includes surface and angle strike
- LifeSpan limited lifetime warranty