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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4 t% z: }% l" a( e8 }
1 lead tolerance ,% M( L- S4 S% _; C( @
cumulative lead tolerance
}- Q$ k! A' U9 S6 r1 D# d! h. B5 D8 |+ G
2 all shoulder contact faces shall be square with the thread axis and flat within 0.002 inches9 f* \7 O$ C% _2 a" G1 U
* w1 J+ y; k7 |: D
3 break all sharp edges 0.005 max3 A: E- O: w# I, [& l( n2 ~
5 s+ t: I: s% `1 m
4 3/4'' male beco thread form& R7 W# g! d; X0 K
8 o# u& O$ k/ D2 e- s, ^2 \7 S5 0.25 taper per inch& ^$ _5 N3 m: |& Z: q
7 a4 ?+ i8 R" P# b8 _! h; M) O( j u6 3/4'' beco pin thread for 1/8TH scale |
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发表于 2008-7-26 11:42:49
