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发布日期:2021年11月29日



DIMENSIONS FOR #0000, #000 AND #00 THREADS

Dimensions for unified thread sizes of #0000, #000 and #00 are given in the Appendix-5 of ASME B18.6.3 and summarized in the following chart.

Nominal Size and Threads per inch Series Designation Class Major Diameter Pitch Diameter Minor Diameter
Allowance Max. Min. Max. Min. Tol.
0000-160 NS 2 0.0000 0.0210 0.0195 0.0169 0.0158 0.0011 0.0128
000-120 NS 2 广东楼凤性息 高清完整视频,yy4480青苹果影院新视觉影院看吧网 yy4480青苹果影院 0.0000 0.0340 0.0325 广东楼凤性息 高清完整视频,yy4480青苹果影院新视觉影院看吧网 yy4480青苹果影院 0.0286 0.0272 0.0014 0.0232
00-90 NS 2 0.0000 0.0470 0.0450 0.0398 0.0382 0.0016 0.0326
00-96 NS 2 0.0000 0.0470 0.0450 0.0402 0.0386 0.0016 0.0334
EXTERNAL THREAD

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Nominal Size and Threads per inch Series Designation Class Minor Diameter Pitch Diameter Major Diameter, Min
Min. Max. Min. Max. Tol.
0000-160 NS 2 --- --- 0.0169 0.0181 0.0012 0.0210
000-120 NS 2 --- --- 0.0286 0.0300 0.0014 0.0340
00-90 NS 2 --- --- 0.0398 0.0414 0.0016 0.0470
00-96 NS 2 --- --- 0.0402 0.0418 0.0016 0.0470
INTERNAL THREAD

Note: The minor diameter limits for internal threads are not specified; they are determined by the amount of thread engagement necessary to satisfy the strength and tapping performance in the intended application.

Reference:

  • ASME B18.6.3 - 2003, Machine Screws and Machine Screw Nuts