Specifications of International Thread Standards

Because of its asymmetrical profile, the buttress thread is well-suited for a high, unilaterally working axial load. The thread is often used in spindle presses, lifting systems and for collet chucks in lathes und milling machines.
The flank angle is 33°.

Nominal
Diameter
Bolt Thread
Minor Diameter
mm
Tapping
Drill Size
mm
S 10 x 26.5287.000
S 12 x 36.7947.500
S 14 x 38.7949.500
S 16 x 49.05810.000
S 18 x 411.05812.000
S 20 x 413.05814.000
S 22 x 513.32214.500
S 24 x 515.32216.500
S 26 x 517.32218.500
S 28 x 519.32220.500
S 30 x 619.58621.000
S 32 x 621.58623.000
S 34 x 623.58625.000
S 36 x 625.58627.000
S 38 x 725.85227.500
S 40 x 727.82529.500
S 42 x 739.82531.500
S 44 x 731.82533.500
S 46 x 832.11634.000
S 48 x 834.11636.000
S 50 x 836.11638.000
S 52 x 838.11640.000
S 55 x 939.38041.500
S 60 x 944.38046.500
S 65 x 1047.64450.000
S 70 x 1052.64455.000
S 75 x 1057.64460.00
S 80 x 1062.64465.000
S 85 x 1264.17467.000
S 90 x 1269.17472.000
S 95 x 1274.17477.000
S 100 x 1279.17482.000
S 105 x 1284.17487.000
S 110 x 1289.17492.000
S 115 x 1490.70294.000
S 120 x 1495.70299.000
S 125 x 14100.702104.000
S 130 x 14105.702109.000
S 135 x 14110.702114.000
S 140 x 14115.702119.000
S 145 x 14120.702124.000
S 150 x 16122.231126.000
S 155 x 16127.231131.000
S 160 x 16132.231136.000
S 165 x 16137.231141.000
S 170 x 16142.231146.000
S 175 x 16147.231151.000
S 180 x 18148.760153.000
S 185 x 18153.760158.000
S 190 x 18158.760163.000
S 195 x 18163.760168.000
S 200 x 18168.760173.000
S 210 x 20175.289180.000
S 220 x 20185.289190.000
S 230 x 20195.289200.000
S 240 x 22201.818207.000
S 250 x 22211.818217.000
S 260 x 22221.818227.000
S 270 x 24228.347234.000
S 280 x 24238.347244.000
S 290 x 24248.347254.000
S 300 x 24258.347264.000
Buttress Coarse Thread
BORNEMANN Gewindetechnik