Gages ISO metric trapezoidal screw thread are defined in the DIN 103-9 . TR 8 x 1.5 where Tr designates a trapezoidal thread, 8 is the nominal diameter in millimeters, and 1.5 is the pitch in millimeters.

The Trapezoidal Thread is shaped like an isosceles trapezium. The thread pitches are broader than in threads with a triangular profile. Trapezoidal Thread are used in lead screw of lathe or spindle presses because they are able to transmit higher axial forces. The flank angle is 30°.

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Find the most up-to-date version of DIN 103-9 at GlobalSpec.

DIN 103-9 - 1985-02 Metrisches ISO-Trapezgewinde; Lehren für Bolzen- und Muttergewinde; Lehrenmaße und Baumerkmale. Jetzt informieren!

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Pre-finished 3d models of your ISO metric trapezoidal thread according to DIN 513 in your desired thread size. Download in STEP or SolidWorks format.

DIN 103-9 – ISO metric trapezoidal screw threads; gauging of external and internal threads; gauge dimensions and design features.

This Standard specifies requirements for PN 16 and PN 35 solid gate metal-bodied metalseated gate valves for waterworks purposes, with a maximum operating temperature of 40°C. This Standard is... This document is referenced by: