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发表于 2013-5-28 11:30:24
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显示全部楼层
美制螺纹. }6 h: J: F8 n
标号 螺纹代号 外螺纹 内螺纹1 o4 |" m2 {# q$ B2 K
公差等级2A 公差等级2B
! Z, b- J& p V, Y' K2 h 大径 中径 小径- F8 u2 Y" r: k/ r
最大 小径 中径 大径4 p; T# l; p0 {6 ^) g
最小% s/ h4 V! g) \2 E2 E% y& @" B9 z: }
最大 最小 最大 最小 最小 最大 最小 最大
0 z7 H7 L( L, V0 [/ A' l% z# dJIC螺纹
M5 `# l' r6 @02 5/16×24UNF 7.910 7.727 7.221 7.127 6.650 6.782 7.036 7.249 7.371 7.938
6 `3 n" P# v' l1 e2 q/ e7 P2 C03 3/8*24UNF 9.497 9.314 8.809 8.712 8.237 8.382 8.636 8.837 8.961 9.525! }2 D E0 a4 G1 z9 |" y
04 7/16*20UNF 11.079 10.874 10.254 10.147 9.568 9.728 10.033 10.287 10.424 11.113
9 s+ G7 F4 h6 H3 ~05 1/2*20UNF 12.667 12.461 11.841 11.732 11.156 11.328 11.608 11.875 12.017 12.7
Q V/ `# q& j" S4 [06 9/16*18UNF 14.252 14.031 13.335 13.221 12.573 12.751 13.081 13.371 13.52 14.288
/ d/ d4 n. c, P: W08 3/4*16UNF 19.012 18.773 17.981 17.854 17.12 17.323 17.678 18.019 18.184 19.05
4 V% w9 s, B X8 @. U+ v* E; I: J4 A10 7/8*14UNF 22.184 21.923 21.006 20.869 20.025 20.269 20.676 21.046 21.224 22.225
/ N2 o# T- W% Q! U/ G12 1.1/16*12UNF 26.944 26.655 25.57 25.425 24.425 24.689 25.146 25.613 25.801 26.988
2 _' D& q0 }/ ^" m" c0 ?16 1.5/16*12UNF 33.294 33.005 31.92 31.773 30.775 31.039 31.496 31.963 32.154 33.338
! V0 T6 F, e i% d20 1.5/8*12UNF 41.229 40.94 39.855 39.705 38.71 38.989 39.446 39.901 40.094 41.275
K5 K; b6 e% U" B) i24 1.7/8*12UNF 47.579 47.29 46.205 46.053 45.06 45.339 45.796 46.251 46.449 47.625: u- R/ w* O0 w1 @( X
32 2.1/2*12UNF 63.452 63.162 62.078 61.92 60.932 61.214 61.671 62.126 62.332 63.5
$ h! Y& N8 c7 U0 `+ ^( U40 3812UNF 76.157 75.862 74.778 74.618 73.632 73.914 74.371 74.826 75.034 76.2) K8 Y9 W# d) W7 {( j; C4 N3 ]
18HK 1.1/2*10UNF 38.052 37.724 36.401 36.238 35.029 35.357 35.890 36.449 36.660 38.100) m4 U; U$ o5 r
ORFS螺纹
; k' `- H I7 t0 K/ J6 K! R% p04 9/16*18UNF 14.252 14.031 13.335 13.221 12.573 12.751 13.081 13.371 13.52 14.2886 i0 ^, f' {9 H8 U* ?) Y% E, w
06 11/16*16UNF 17.427 17.188 16.396 16.274 15.535 15.748 16.104 16.431 16.589 17.4638 A& g3 o6 ^1 l
08 13/16*16UNF 20.599 20.361 19.568 19.444 18.707 18.923 19.279 19.606 19.766 20.638' `: ]! G0 v1 f- Y
10 1*14UNSF 25.357 25.095 24.178 24.036 23.195 23.444 23.825 24.221 24.407 25.4
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