262 TECHNICAL INFORMATION H =0.866025P D =d H1=0.541266P D2=d2 D1=d1 d2=d−0.649519P d1=d−1.082532P Unit: mm H H H H 2 90° 60° 30° 30° H 2 P 4 H1 8 Female Thread Male Axial Line of Thread d1 or D1 d1 or D2 d or D Nominal of Thread Pitch P Height of Engagement H1 Female Thread Minor Dia. D Effective Dia. D2 Inner Dia. D1 Male Thread Outer Dia. d Effective Dia. d2 Inner Dia. d1 M 1 ×0.2 0.2 0.108 1.000 0.870 0.783 M 1.1×0.2 0.2 0.108 1.100 0.970 0.883 M 1.2×0.2 0.2 0.108 1.200 1.070 0.983 M 1.4×0.2 0.2 0.108 1.400 1.270 1.183 M 1.6×0.2 0.2 0.108 1.600 1.470 1.383 M 1.8×0.2 0.2 0.108 1.800 1.670 1.583 M 2 ×0.25 0.25 0.135 2.000 1.838 1.729 M 2.2×0.25 0.25 0.135 2.200 2.038 1.929 M 2.5×0.35 0.35 0.189 2.500 2.273 2.121 M 3 ×0.35 0.35 0.189 3.000 2.773 2.621 M 3.5×0.35 0.35 0.189 3.500 3.273 3.121 M 4 ×0.5 0.5 0.271 4.000 3.675 3.459 M 4.5×0.5 0.5 0.271 4.500 4.175 3.959 M 5 ×0.5 0.5 0.271 5.000 4.675 4.459 M 5.5×0.5 0.5 0.271 5.500 5.175 4.959 M 6 ×0.75 0.75 0.406 6.000 5.513 5.188 M 7 ×0.75 0.75 0.406 7.000 6.513 6.188 M 8 ×1 1 0.541 8.000 7.350 6.917 M 8 ×0.75 0.75 0.406 8.000 7.513 7.188 M 9 ×1 1 0.541 9.000 8.350 7.917 M 9 ×0.75 0.75 0.406 9.000 8.513 8.188 M 10 ×1.25 1.25 0.677 10.000 9.188 8.647 M 10 ×1 1 0.541 10.000 9.350 8.917 M 10 ×0.75 0.75 0.406 10.000 9.513 9.188 M 11 ×1 1 0.541 11.000 10.350 9.917 M 11 ×0.75 0.75 0.406 11.000 10.513 10.188 M 12 ×1.5 1.5 0.812 12.000 11.026 10.376 M 12 ×1.25 1.25 0.677 12.000 11.188 10.647 M 12 ×1 1 0.541 12.000 11.350 10.917 M 14 ×1.5 1.5 0.812 14.000 13.026 12.376 M 14 ×1.25 1.25 0.677 14.000 13.188 12.647 M 14 ×1 1 0.541 14.000 13.350 12.917 M 15 ×1.5 1.5 0.812 15.000 14.026 13.376 M 15 ×1 1 0.541 15.000 14.350 13.917 M 16 ×1.5 1.5 0.812 16.000 15.026 14.376 M 16 ×1 1 0.541 16.000 15.350 14.917 M 17 ×1.5 1.5 0.812 17.000 16.026 15.376 M 17 ×1 1 0.541 17.000 16.350 15.917 M 18 ×2 2 1.083 18.000 16.701 15.835 M 18 ×1.5 1.5 0.812 18.000 17.026 16.376 M 18 ×1 1 0.541 18.000 17.350 16.917 M 20 ×2 2 1.083 20.000 18.701 17.835 M 20 ×1.5 1.5 0.812 20.000 19.026 18.376 M 20 ×1 1 0.541 20.000 19.350 18.917 M 22 ×2 2 1.083 22.000 20.701 19.835 M 22 ×1.5 1.5 0.812 22.000 21.026 20.376 M 22 ×1 1 0.541 22.000 21.350 20.917 M 24 ×2 2 1.083 24.000 22.701 21.835 M 24 ×1.5 1.5 0.812 24.000 23.026 22.376 M 24 ×1 1 0.541 24.000 23.350 22.917 Nominal of Thread Pitch P Height of Engagement H1 Female Thread Minor Dia. D Effective Dia. D2 Inner Dia. D1 Male Thread Outer Dia. d Effective Dia. d2 Inner Dia. d1 M 25×2 2 1.083 25.000 23.701 22.835 M 25×1.5 1.5 0.812 25.000 24.026 23.376 M 25×1 1 0.541 25.000 24.350 23.917 M 26×1.5 1.5 0.812 26.000 25.026 24.376 M 27×2 2 1.083 27.000 25.701 24.835 M 27×1.5 1.5 0.812 27.000 26.026 25.376 M 27×1 1 0.541 27.000 26.350 25.917 M 28×2 2 1.083 28.000 26.701 25.835 M 28×1.5 1.5 0.812 28.000 27.026 26.376 M 28×1 1 0.541 28.000 27.350 26.917 M 30×3 3 1.624 30.000 28.051 26.752 M 30×2 2 1.083 30.000 28.701 27.835 M 30×1.5 1.5 0.812 30.000 29.026 28.376 M 30×1 1 0.541 30.000 29.350 28.917 M 32×2 2 1.082 32.000 30.701 29.835 M 32×1.5 1.5 0.812 32.000 31.026 30.376 M 33×3 3 1.624 33.000 31.051 29.752 M 33×2 2 1.083 33.000 31.701 30.835 M 33×1.5 1.5 0.812 33.000 32.026 31.376 M 35×1.5 1.5 0.812 35.000 34.026 33.376 M 36×3 3 1.624 36.000 34.051 32.752 M 36×2 2 1.083 36.000 34.701 33.835 M 36×1.5 1.5 0.812 36.000 35.026 34.376 M 38×1.5 1.5 0.812 38.000 37.026 36.376 M 39×3 3 1.624 39.000 37.051 35.752 M 39×2 2 1.083 39.000 37.701 36.835 M 39×1.5 1.5 0.812 39.000 38.026 37.376 M 40×3 3 1.624 40.000 38.051 36.752 M 40×2 2 1.083 40.000 38.701 37.835 M 40×1.5 1.5 0.812 40.000 39.026 38.376 M 42×4 4 2.165 42.000 39.402 37.670 M 42×3 3 1.624 42.000 40.051 38.752 M 42×2 2 1.083 42.000 40.701 39.835 M 42×1.5 1.5 0.812 42.000 41.026 40.376 M 45×4 4 2.165 45.000 42.402 40.670 M 45×3 3 1.624 45.000 43.051 41.752 M 45×2 2 1.083 45.000 43.701 42.835 M 45×1.5 1.5 0.812 45.000 44.026 43.376 M 48×4 4 2.165 48.000 45.402 43.670 M 48×3 3 1.624 48.000 46.051 44.752 M 48×2 2 1.083 48.000 46.701 45.835 M 48×1.5 1.5 0.812 48.000 47.026 46.376 M 50×3 3 1.624 50.000 48.051 46.752 M 50×2 2 1.083 50.000 48.701 47.835 M 50×1.5 1.5 0.812 50.000 49.026 48.376 M 52×4 4 2.165 52.000 49.402 47.670 M 52×3 3 1.624 52.000 50.051 48.752 M 52×2 2 1.083 52.000 50.701 49.835 M 52×1.5 1.5 0.812 52.000 51.026 50.376 M 55×4 4 2.165 55.000 52.402 50.670 M 55×3 3 1.624 55.000 53.051 51.752 M 55×2 2 1.083 55.000 53.701 52.835 M 55×1.5 1.5 0.812 55.000 54.026 53.376 GeneralTechnical Information Metric Fine ScrewThreads
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