Buttress Coarse Thread DIN 513

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 2 6.528 7.000
S 12 x 3 6.794 7.500
S 14 x 3 8.794 9.500
S 16 x 4 9.058 10.000
S 18 x 4 11.058 12.000
S 20 x 4 13.058 14.000
S 22 x 5 13.322 14.500
S 24 x 5 15.322 16.500
S 26 x 5 17.322 18.500
S 28 x 5 19.322 20.500
S 30 x 6 19.586 21.000
S 32 x 6 21.586 23.000
S 34 x 6 23.586 25.000
S 36 x 6 25.586 27.000
S 38 x 7 25.852 27.500
S 40 x 7 27.825 29.500
S 42 x 7 39.825 31.500
S 44 x 7 31.825 33.500
S 46 x 8 32.116 34.000
S 48 x 8 34.116 36.000
S 50 x 8 36.116 38.000
S 52 x 8 38.116 40.000
S 55 x 9 39.380 41.500
S 60 x 9 44.380 46.500
S 65 x 10 47.644 50.000
S 70 x 10 52.644 55.000
S 75 x 10 57.644 60.00
S 80 x 10 62.644 65.000
S 85 x 12 64.174 67.000
S 90 x 12 69.174 72.000
S 95 x 12 74.174 77.000
S 100 x 12 79.174 82.000
S 105 x 12 84.174 87.000
S 110 x 12 89.174 92.000
S 115 x 14 90.702 94.000
S 120 x 14 95.702 99.000
S 125 x 14 100.702 104.000
S 130 x 14 105.702 109.000
S 135 x 14 110.702 114.000
S 140 x 14 115.702 119.000
S 145 x 14 120.702 124.000
S 150 x 16 122.231 126.000
S 155 x 16 127.231 131.000
S 160 x 16 132.231 136.000
S 165 x 16 137.231 141.000
S 170 x 16 142.231 146.000
S 175 x 16 147.231 151.000
S 180 x 18 148.760 153.000
S 185 x 18 153.760 158.000
S 190 x 18 158.760 163.000
S 195 x 18 163.760 168.000
S 200 x 18 168.760 173.000
S 210 x 20 175.289 180.000
S 220 x 20 185.289 190.000
S 230 x 20 195.289 200.000
S 240 x 22 201.818 207.000
S 250 x 22 211.818 217.000
S 260 x 22 221.818 227.000
S 270 x 24 228.347 234.000
S 280 x 24 238.347 244.000
S 290 x 24 248.347 254.000
S 300 x 24 258.347 264.000