000 00226nam a2200073 4500
080 _a
_b
245 _aIS: 9519 - 1980; Dimensions for Width Across Flats for Hexagon Head Bolts and Nuts
700 _aINDIAN STANDARDS INSTITUTION
260 _aNew Delhi
_bBIS
_c1980
300 _a3p
999 _c29142
_d29142