ISO 4755:1983(R2018)现行
FASTENERS - THREAD UNDERCUTS FOR EXTERNAL METRIC ISO THREADS
出版：International Organization for Standardization
专家解读视频
Provides the form and dimensions of undercuts for bolts, screws and similar externally threaded products, recommended for use in those cases where it is needed for components such as plugs.
UNI ISO 4755 : 1986 - Identical
BIS IS 1369-2 : 1993(R1998) - Identical
DS ISO 4755 : 1984 - Identical
NS 5743 : 1ED 1985 - Identical
SANS 1700-3-8 : 1ED 1996(R2014) - Identical
NS 5743 : 1ED 1985 - Identical
DS ISO 4755 : 1984 - Identical
BIS IS 1369-2 : 1993(R1998) - Identical
UNI ISO 4755 : 1986 - Identical
SANS 1700-3-8 : 1ED 1996(R2014) - Identical
