Dies are the cutting tools used to create external threads on bolts, screws, rods, and studs—making them an indispensable part of any threading operation in metal fabrication, machining, and repair work. At Mutual Screw & Supply, we carry a selection of hand dies, rethreading dies, and hex dies in standard and metric sizes to meet the needs of production shops, maintenance crews, and OEM manufacturers alike. Getting the right die means matching the thread form, pitch, and material to your specific application—so if you have questions about what you need, our team is always happy to help. Otherwise, browse our full selection of dies below and get the job done right.