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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' Q# V2 J! a: p9 k
1 lead tolerance ,# P2 E3 }1 R7 d% l
cumulative lead tolerance
) I* D$ ~, ^2 e t4 E
6 M# F' y( |9 {1 z# y% y2 all shoulder contact faces shall be square with the thread axis and flat within 0.002 inches. |$ k5 i! r4 e5 }: D
Q" X/ d) h, X/ B b
3 break all sharp edges 0.005 max
0 H% d6 k5 x3 M: ~# q
9 l8 c" N2 M, S* H. o! |4 3/4'' male beco thread form
* U7 B. E0 d, ~2 M$ y' r1 v5 ^* J+ z0 E' _0 B' m7 `( p
5 0.25 taper per inch5 D# {7 @* U' O
$ h7 q; M1 S. x7 Z9 U& Y, @8 r
6 3/4'' beco pin thread for 1/8TH scale |
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发表于 2008-7-26 11:42:49
