Bộ ốc vít cổ điển (Classic Nut and Bolt)

A classic nut and bolt that features matching threads that allow the nut to smoothly engage with the bolt, making it ideal for testing printer tolerances, learning about threaded fasteners, and creating mechanical assemblies. Includes easy-to-print geometry and whether you are experimenting with threaded parts or need a simple fastener for your next project, this nut and bolt set provides a practical and reliable solution.