The Starrett 585D-P Screw Thread Micrometer measures external screw thread diameters in the 1 to 2 inch range. As a precision instrument from Starrett, the 585D-P is designed for accurate and repeatable thread measurements in machining, assembly, and quality-control workflows. This micrometer provides reliable readings within its specified range for verifying fastener and threaded component sizes where exact thread dimensions are critical.
