These National Manufacturing bit snaps are super handy little fasteners that have countless uses around the workshop, farm, or for various DIY projects. The 5/16 inch size is versatile and commonly used for harnesses, leashes, quick connections, and general fastening needs. Made with a steel body and spring, these snaps feel durable and well-constructed - not like those flimsy cheap versions that break easily. The zinc finish provides decent corrosion resistance for general use, though they're not intended for marine environments or constant moisture exposure. What's really convenient is the spring-loaded design that allows for quick attachment and release with one hand - no fumbling with complicated closures. The 20-piece quantity means you have plenty to work with for multiple projects or replacements when needed. These are perfect for dog leashes, horse harnesses, tool tethers, camping gear, or any situation where you need a reliable quick-connect solution. The boxed loose packaging makes storage easy, and having multiple snaps on hand means you're always prepared for repairs or new projects. While they might seem like simple hardware, having quality bit snaps like these can make a big difference in safety and convenience for various applications. If you're tired of cheap fasteners that fail when you need them most or just want to have reliable hardware on hand for various projects, this 20-pack of 5/16 inch bit snaps is definitely worth adding to your toolkit. They're one of those basic supplies that you'll find yourself reaching for again and once you have them available!