| PROPRIETARY CHARACTERISTICS | PACS |
| NOMINAL THREAD SIZE | 0.4375 INCHES |
| SHANK DIAMETER | 0.4360 INCHES MINIMUM AND 0.4370 INCHES MAXIMUM |
| SHANK STYLE | PIN-RIVET, STRAIGHT, THREADED |
| SPECIFICATION/STANDARD DATA | 97499-100-145 MANUFACTURERS STANDARD |
| WIDTH BETWEEN FLATS | 0.1895 INCHES MINIMUM AND 0.1930 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ALUMINUM PIGMENTED COATING PER HI-SHEAR SPEC 294 MFR REF SINGLE TREATMENT RESPONSE OR NAS4006 NATIONAL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | ALUMINUM OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 20 |
| THREAD SERIES DESIGNATOR | UNJF |
| TIP DIAMETER | 0.4260 INCHES MINIMUM AND 0.4310 INCHES MAXIMUM |
| COUNTERSINK ANGLE | 90.0 DEGREES MINIMUM AND 100.0 DEGREES MAXIMUM |
| FASTENER LENGTH | 1.7875 INCHES MINIMUM AND 1.8075 INCHES MAXIMUM |
| GRIP LENGTH | 1.3075 INCHES MINIMUM AND 1.3175 INCHES MAXIMUM |
| HEAD HEIGHT | 0.0930 INCHES MINIMUM AND 0.1050 INCHES MAXIMUM |
| HEAD STYLE | COUNTERSUNK W/REVERSE CHAMFER |
| HEAD MAJOR DIAMETER | 0.6410 INCHES MINIMUM AND 0.6760 INCHES MAXIMUM |
| LUBRICATION | CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS5629,PH13-8MO STAINLESS STEEL NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP XM-13 OVERALL |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | PIN,PROTRUDING,SHEAR HEAD,PH13-8MO CRES,HEX DRIVE |