ISO 691 : 2005(R2014)现行
ASSEMBLY TOOLS FOR SCREWS AND NUTS - WRENCH AND SOCKET OPENINGS - TOLERANCES FOR GENERAL USE
出版：International Organization for Standardization
专家解读视频
Provides tolerances on wrench and socket openings for screws and nuts (or similar parts) having metric width across flats dimensions.
UNI ISO 691 : 2008 - Identical
BS 192(1982) : 1982 - Similar to
NF ISO 691 : 2006 - Identical
UNI 5951 : 1987 - Similar to
NFE 74 300 : 1984 - Similar to
DIN ISO 691 E : 2007 - Identical
NBR ISO 691 : 2009 - Identical
DIN 475-2 E : 1982 - Corresponds
UNE 16502 : 2008 - Identical
DIN ISO 691 : 2007-04 - Identical
