Bolt Measuring Tool, Screw Gauge Measuring Tool, Thread and Rivet... Excellent for sizing bolts, nuts, & screws (USS, SAE, & Metric) Gauge various styles of machine screws Gauge... from retail to the industrial fastener industry. The measuring tools are injection molded parts and can be used for measuring nuts, bolts, screws, drill bits, rivets and more. We..., but in various countries on a global scale as well. Look to BoltSize-It for wholesale prices when it comes to your nut, bolt, screw, thread, rivet and drill bit measuring tool needs. Every...