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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
8 \7 @' u/ D' c- Z; H1 lead tolerance ,7 Q! }" S, m5 k" L2 y# q1 M* K
cumulative lead tolerance9 `, N* V/ W0 @& }# P' v7 z
/ f& Y# q4 h4 v, p+ I$ g2 all shoulder contact faces shall be square with the thread axis and flat within 0.002 inches
7 T: J1 X/ c, r: A2 y$ W2 p' ?( R8 d6 {; `* |
3 break all sharp edges 0.005 max; J2 h: o5 h( u3 [
9 x9 i% e/ E" L& A* f& s2 w8 C4 3/4'' male beco thread form
6 A7 n( p$ }8 S3 F
0 Y ^1 i% }* n0 H5 0.25 taper per inch
, j$ U, Z# o1 I3 V
4 M$ B! ]3 J( \# R y6 3/4'' beco pin thread for 1/8TH scale |
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