| COUNTERSINK ANGLE | 100.0 DEGREES NOMINAL |
| FASTENER LENGTH | 1.430 INCHES MINIMUM AND 1.450 INCHES MAXIMUM |
| GRIP LENGTH | 0.745 INCHES MINIMUM AND 0.755 INCHES MAXIMUM |
| HEAD STYLE | FLUSH COUNTERSUNK |
| HEAD MAJOR DIAMETER | 0.8812 INCHES MINIMUM AND 0.8884 INCHES MAXIMUM |
| LUBRICATION | CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS4928 ASSN STD SINGLE MATERIAL RESPONSE OR AMS4967 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | TITANIUM ALLOY UNS R56400 OVERALL |
| MINIMUM TENSILE STRENGTH | 18900 POUNDS PER SQUARE INCH |
| NOMINAL THREAD SIZE | 0.438 INCHES |
| SHANK DIAMETER | 0.4521 INCHES MINIMUM AND 0.4526 INCHES MAXIMUM |
| SHANK STYLE | PIN-RIVET, STRAIGHT, THREADED |
| SHEAR STRENGTH | 30600 DOUBLE POUNDS PER SQUARE INCH |
| SPECIAL FEATURES | GRIT BLAST TOP OF HEAD, WITH COLOR WHITE ON THREAD END, 1/64" OVERSIZE, (FOR REPAIR WORK ONLY) |
| SPECIFICATION/STANDARD DATA | 73197-HLT437 MANUFACTURERS STANDARD |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |
| WIDTH BETWEEN FLATS | 0.1895 INCHES MINIMUM AND 0.1930 INCHES MAXIMUM |