TY - BOOK ED - Indian Standards Institution TI - Indian standard specification for black hexagon bolts, nuts, and lock nuts (diameter 6 to 39mm) and black hexagon screws (diameter range 6 to 24mm) PY - 1971/// CY - New Delhi PB - Indian Standards Institution KW -  Bolts, Nuts and Lock Nuts Standards KW -  Standards  KW - NASA Thesaurus  N1 - IS 1363 : 1967 ER -