ISO 2857 : 1973(R2016)现行
GROUND THREAD TAPS FOR ISO METRIC THREADS OF TOLERANCES 4H TO 8H AND 4G TO 6G COARSE AND FINE PITCHES - MANUFACTURING TOLERANCES ON THE THREADED PORTION
出版：International Organization for Standardization
专家解读视频
Gives specification for the manufacturing tolerances of the threaded parts of taps for the production of ISO metric threads tolerance classes 4H to 8H and 4G to 6G.
I.S. EN 22857:1990 - Identical
DIN 802-1 : 1982 - Identical
NS ISO 2857 : 1ED 1989 - Identical
UNE 16605 : 1991 - Identical
NFE 66 100 : 1985 - Identical
NS 5374 : 1ED 1977 - Similar to
NBR ISO 2857 : 2011 ERRATA 2011 - Identical
NEN ISO 2857 : 1990 - Identical
DIN EN 22857 : 1990-07 - Identical
