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9.1 Nuts shall be hexagonal in shape, and in accordance& l0 \; m$ `7 u4 P/ q. ?" s# y
with the dimensions for the hex or heavy hex series, as
4 t2 r: k/ w2 w" F, ~& \2 ]& ^required, by ANSI B 18.2.2 and ANSI B 18.2.4.6M. Unless) z; R2 E, z2 K z3 O* K" w
otherwise specified, the American National Standard Heavy) H$ V( c" x9 W7 I# X% Y
Hex Series shall be used and nuts shall be either double7 R' g! h) L/ d; \% i% c
chamfered or have a machined or forged washer face, at the9 j( L& N. w6 N T
option of the manufacturer, and, conform to the angularity
* O$ p/ m6 d" U/ g( e! o# a2 Orequirements of ANSI B 18.2.2 and ANSI B 18.2.4.6M.
9 [1 ^, a7 q: C! j这是ASTM A194里的一段话。% K3 F' y# W7 H. x' T& h
对于红色那段话我的理解是,如果螺母标注没有其他特殊说明。那么就应该是才用Heavy Hex Series 而不是hex series。) R# [8 d7 z2 B" S2 I7 }' U9 ]
不知道大家是怎么看。。。; x. h+ l& y7 P& m: k! l
因为今天公司采办说我们没写Heavy Hex Series ,所以他们居然买来一薄螺母。。。。/ e+ @4 i; b' ~7 x) u6 Q
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[ 本帖最后由 htsky 于 2008-7-23 15:24 编辑 ] |
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