This National Hardware safety hasp is a reliable addition to any home or building. Made from high-quality steel and zinc plated for durability, it is designed to keep doors secure and safe. With a size of 1-3/4", it is perfect for use on a variety of doors and door hardware. The brand name speaks for itself in terms of quality and reliability, making this a top choice for those in need of a sturdy and long-lasting safety hasp and is designed for easy installation with a 3/32" drill bit.