Table 3. Screw Thread Insert Length Data ANSI/ASME B18.29.2M-2005 (R2017) Table 3. (Continued) Screw Thread Insert Length Data ANSI/ASME B18.29.2M-2005 (R2017)
1 1 ∕ 2 × Diam. Assembled
2 × Diam. Assembled
2 1 ∕ 2 × Diam. Assembled
3 × Diam. Assembled
1 × Diam. Assembled
C
C
C
C
C
Nomi nal
Nominal Thread Size
Nom- inal
Nom- inal
Nom- inal
Nom- inal
Max. Min. (Ref.) (Ref.) M18 × 2.5 18.00 16.75 16.12 5.375 27.00 25.75 25.12 8.875 36.00 34.75 34.12 12.250 45.00 43.75 43.12 15.625 54.00 52.75 52.12 19.000 M20 × 1.5 20.00 19.25 18.87 10.750 30.00 29.25 28.87 16.875 40.00 39.25 38.87 22.875 50.00 49.25 48.87 28.875 60.00 59.25 58.87 35.000 M20 × 2 Max. Min. (Ref.) Max. Min. (Ref.) Max. Min. (Ref.) Max. Min. 20.00 19.00 18.50 7.875 30.00 29.00 28.50 12.500 40.00 39.00 38.50 17.250 50.00 49.00 48.50 21.875 60.00 59.00 58.50 26.500 M20 × 2.5 20.00 18.75 18.12 6.125 30.00 28.75 28.12 9.875 40.00 38.75 38.12 13.625 50.00 48.75 48.12 17.375 60.00 58.75 58.12 21.125 M22 × 1.5 22.00 21.25 20.87 11.875 33.00 32.25 31.87 18.500 44.00 43.25 42.87 25.125 55.00 54.25 53.87 31.625 66.00 65.25 64.87 38.250 M22 × 2 22.00 21.00 20.50 8.750 33.00 32.00 31.50 13.750 44.00 43.00 42.50 18.875 55.00 54.00 53.50 23.875 66.00 65.00 64.50 29.000 M22 × 2.5 22.00 20.75 20.12 6.750 33.00 31.75 31.12 10.875 44.00 42.75 42.12 14.875 55.00 53.75 53.12 19.000 66.00 64.75 64.12 23.125 M24 × 2 24.00 23.00 22.50 9.500 36.00 35.00 34.50 15.000 48.00 47.00 16.50 20.375 60.00 59.00 58.50 25.875 72.00 71.00 70.50 31.250 M24 × 3 24.00 22.50 21.75 6.125 36.00 34.50 33.75 10.000 48.00 46.50 45.75 13.750 60.00 58.50 57.75 17.500 72.00 70.50 69.75 21.375 M27 × 2 27.00 26.00 25.50 10.875 40.50 39.50 39.00 17.000 54.00 53.00 52.50 23.250 67.50 66.50 66.00 29.375 81.00 80.00 79.50 35.500 M27 × 3 27.00 25.50 24.75 7.000 40.50 39.00 38.25 11.250 54.00 52.50 51.75 15.500 67.50 66.50 65.25 19.750 81.00 79.50 78.75 24.000 M30 × 2 30.00 29.00 28.50 12.250 45.00 44.00 43.50 19.125 60.00 59.00 58.50 25.875 75.00 74.00 73.50 32.750 90.00 89.00 88.50 39.500 M30 × 3 30.00 28.50 27.75 7.875 45.00 43.50 42.75 12.500 60.00 58.50 57.75 17.125 75.00 73.50 72.75 21.875 90.00 88.50 87.75 26.500 M30 × 3.5 30.00 28.25 27.37 6.750 45.00 43.25 42.37 10.750 60.00 58.25 57.37 14.875 75.00 73.25 72.37 18.875 90.00 88.25 87.37 23.000 M33 × 2 33.00 32.00 31.50 13.625 49.50 48.50 48.00 21.125 66.00 65.00 64.50 28.625 82.50 81.50 81.00 35.000 99.00 98.00 97.50 43.500 M33 × 3 33.00 32.50 30.75 8.750 49.50 48.00 47.25 13.875 66.00 64.50 63.75 19.000 82.50 81.00 80.25 24.125 99.00 97.50 96.75 29.250 M36 × 2 36.00 35.00 34.50 15.000 54.00 53.00 52.50 23.250 72.00 71.00 70.50 31.375 90.00 89.00 88.50 39.500 108.00 107.00 106.50 47.750 M36 × 3 36.00 34.50 33.75 9.750 54.00 52.50 51.75 15.250 72.00 70.50 69.75 20.875 90.00 88.50 87.75 26.500 108.00 106.50 105.75 32.000 M36 × 4 36.00 34.00 33.00 7.125 54.00 52.00 51.00 11.375 72.00 70.00 69.00 15.625 90.00 88.00 87.00 19.875 108.00 106.00 105.00 24.250 M39 × 2 39.00 38.00 37.50 16.375 58.50 57.50 57.00 25.250 78.00 77.00 76.50 34.125 97.50 96.50 96.00 43.000 117.00 116.00 115.50 51.875 M39 × 3 39.00 37.50 36.75 10.750 58.50 57.00 56.25 15.750 78.00 76.50 75.75 22.750 97.50 96.00 95.25 28.875 117.00 115.50 114.75 34.875
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