This recommended practice lists wrenching surface sizes for fluid fittings which utilize unmachined hex bar dimensions or forged flat dimensions on the finished machine parts as wrenching surfaces.
HEXAGON BAR AND FORGED WRENCHING FLAT SIZES FOR FLUID FITTINGS
1980-09-01
Conference paper
English
Fittings , Aluminum alloys , Steel , Parts , Titanium alloys , Corrosion
Hexagon Bar, Machined Flat and Forged Wrenching Flat Sizes for Fluid Fittings
SAE Technical Papers | 2000
Tolerances, Hexagon Bar, Machined Flat and Forged Wrenching Flat Sizes for Fluid Fittings
SAE Technical Papers | 2013
Tolerances, Hexagon Bar, Machined Flat and Forged Wrenching Flat Sizes for Fluid Fittings, Metric
SAE Technical Papers | 2015
HEXAGON BAR SIZES FOR FLUID FITTINGS
SAE Technical Papers | 1970
WRENCHING CONFIGURATION, DOUBLE HEXAGON (12 POINT), FOR THREADED FASTENERS
SAE Technical Papers | 1974