Specifications of International Thread Standards

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°.

Nominal
Diameter
Bolt
Diameter
mm
Nut
Minor Diamter
mm
Tr 8 x 1,56.2006.500
Tr 9 x 1,57.2007.500
Tr 10 x 1,58.2008.500
Tr 11 x 28.5009.000
Tr 12 x 29.50010.000
Tr 14 x 211.50012.000
Tr 16 x 213.50014.000
Tr 18 x 215.50016.000
Tr 20 x 217.50018.000
Tr 22 x 318.50019.000
Tr 24 x 320.50021.000
Tr 26 x 322.50023.000
Tr 28 x 324.50025.000
Tr 30 x 326.50027.000
Tr 32 x 328.50029.900
Tr 34 x 330.50031.000
Tr 36 x 332.50033.000
Tr 38 x 334.50035.000
Tr 40 x 336.50037.000
Tr 42 x 338.50039.000
Tr 44 x 340.50041.000
Tr 46 x 342.50043.000
Tr 48 x 344.50045.000
Tr 50 x 346.50047.000
Tr 52 x 348.50049.000
Tr 55 x 351.50052.000
Tr 60 x 356.50057.000
Tr 65 x 460.50061.000
Tr 70 x 465.50066.000
Tr 75 x 470.50071.000
Tr 80 x 475.50076.000
Tr 85 x 480.50081.000
Tr 90 x 485.50086.000
Tr 95 x 490.50091.000
Tr 100 x 495.50096.000
Tr 105 x 4100.500101.000
Tr 110 x 4105.500106.000
Tr 115 x 6108.000109.000
Tr 120 x 6113.000114.000
Tr 125 x 6118.000119.000
Tr 130 x 6123.000124.000
Tr 135 x 6128.000129.000
Tr 140 x 6133.000134.000
Tr 145 x 6138.000139.000
Tr 150 x 6143.000144.000
Tr 155 x 6148.000149.000
Tr 160 x 6153.000154.000
Tr 165 x 6158.000159.000
Tr 170 x 6163.000164.000
Tr 175 x 8166.000167.000
Tr 180 x 8171.000172.000
Tr 185 x 8176.000177.000
Tr 190 x 8181.000182.000
Tr 195 x 8186.000187.000
Tr 200 x 8191.000192.000
Tr 210 x 8201.000202.000
Tr 220 x 8211.000212.000
Tr 230 x 8221.000222.000
Tr 240 x 8231.000232.000
Tr 250 x 12237.000238.000
Tr 260 x 12247.000248.000
Tr 270 x 12257.000258.000
Tr 280 x 12267.000268.000
Tr 290 x 12277.000278.000
Tr 300 x 12287.000288.000
Trapezoidal Fine Thread
BORNEMANN Gewindetechnik