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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
' U; O1 [, M D( k8 a1 lead tolerance ,
g# M7 n( _+ y# j cumulative lead tolerance
/ H7 T* x4 ?' ?2 K1 o
1 n( [# ]: a" }. \3 M2 K2 all shoulder contact faces shall be square with the thread axis and flat within 0.002 inches
( H3 s3 T7 h* q: k0 F2 |6 j3 n% p) a( g
3 break all sharp edges 0.005 max
2 ^1 [' E* P: R% b' p) j, o$ k$ i, s6 T' U
4 3/4'' male beco thread form
% `" |4 ^( a3 S) \9 [! A
1 m$ W8 q3 e6 ^5 a. Q5 0.25 taper per inch
9 s' H6 V [6 ^% Z; M9 ]" l# ?5 D( W( E
6 3/4'' beco pin thread for 1/8TH scale |
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