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国外图纸上螺纹0.25 taper per inch等技术要求含义，见附件
3 j9 ~% P1 F7 r6 _$ q# I/ K1 lead tolerance ,
; N ~4 O' q' b+ T/ U7 j cumulative lead tolerance
5 m! P# {3 X* S) o4 F F; w
; ]8 A: y2 u* r2 all shoulder contact faces shall be square with the thread axis and flat within 0.002 inches
/ T3 z8 a/ _9 V6 K3 e0 }# L
- Z7 B* K# A+ Q3 N; E! E, l3 break all sharp edges 0.005 max
4 i1 K& q; s8 X" c' K* c9 l, w; t% a. M6 ^' E% q; Y5 V0 F; m
4 3/4'' male beco thread form1 X$ O$ P" J# u" E/ K5 |1 e2 ?
$ {% d- s* h" X7 W
5 0.25 taper per inch I( t3 A: e+ ^$ q; b2 a5 F
1 X1 N2 p# x2 }1 x6 3/4'' beco pin thread for 1/8TH scale |
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发表于 2008-7-26 11:42:49
