| FASTENER LENGTH | 1.7860 INCHES MINIMUM AND 1.8260 INCHES MAXIMUM |
| GRIP LENGTH | 1.3760 INCHES MINIMUM AND 1.4380 INCHES MAXIMUM |
| HEAD HEIGHT | 0.0610 INCHES MINIMUM AND 0.0690 INCHES MAXIMUM |
| HEAD MAJOR DIAMETER | 0.3980 INCHES MINIMUM AND 0.4130 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | AISI 8740 ASSN STD ALL MATERIAL RESPONSES OR AISI 4340 ASSN STD ALL MATERIAL RESPONSES OVERALL |
| MATERIAL | STEEL COMP 8740 OR STEEL COMP 4340 OVERALL |
| NOMINAL THREAD SIZE | 0.2500 INCHES |
| SHANK DIAMETER | 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM |
| SHANK STYLE | PIN-RIVET, STRAIGHT, THREADED |
| SHEAR STRENGTH | 108000 SINGLE POUNDS PER SQUARE INCH |
| SPECIFICATION/STANDARD DATA | 80205-NAS4450 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| WIDTH BETWEEN FLATS | 0.0947 INCHES MINIMUM AND 0.0967 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD CLASS | 3A |
| THREAD SERIES DESIGNATOR | UNJF |
| THREAD QUANTITY PER INCH | 28 |