FF-B-561D (NOTICE-1), FEDERAL SPECIFICATION: BOLTS, (SCREW), LAG (03 AUG 1993) [S/S BY ASME/ANSI STANDARD B18.2.1 AND ASME/ANSI STANDARD B18.18.1M]
FF-B-561D (NOTICE-1), FEDERAL SPECIFICATION: BOLTS, (SCREW), LAG (03 AUG 1993) [S/S BY ASME/ANSI STANDARD B18.2.1 AND ASME/ANSI STANDARD B18.18.1M].