| FASTENER LENGTH | 1.0275 INCHES MINIMUM AND 1.2185 INCHES MAXIMUM |
| HAZARDOUS SUBSTANCES | CADMIUM |
| HEAD HEIGHT | 0.156 INCHES MINIMUM AND 0.171 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS6382 INTERNATIONAL STD/SPEC ALL MATERIAL RESPONSES OR AMS6415 INTERNATIONAL STD/SPEC ALL MATERIAL RESPONSES OVERALL |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW, HEX HEAD, CRUCIFORM RECESS, FULL THREAD, ALLOY STEEL, 160 KSI FTU |
| MATERIAL | STEEL COMP 4140 OR STEEL COMP 4340 OVERALL |
| NOMINAL THREAD DIAMETER | 0.3125 INCHES |
| SINGLE SHEAR STRENGTH | 160000 POUNDS PER SQUARE INCH |
| SPECIFICATION/STANDARD DATA | 80205-NAS1801 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS-QQ-P-416, TYPE II, CLASS 2 INTERNATIONAL STD/SPEC ALL TREATMENT RESPONSES OVERALL |
| SURFACE TREATMENT | UNABLE TO DECODE |
| SPECIAL FEATURES | UNDRILLED HEAD. MATERIAL - ALLOY STEEL: 4140 (UNS G41400) PER AMS6382, 4340 (UNS G43406) PER AMS6415 OR AMS6484, OR 8740 (UNS G87400) PER AMS6322, AMS6325 OR AMS6327. FINISH - CADMIUM PLATE PER AMS-QQ-P-416, TYPE II, CLASS 2. HEAT TREATMENT: AMS2759; 160 TO 180 KSI FTU. |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.9635 INCHES MINIMUM AND 1.1865 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 24 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |
| WIDTH BETWEEN FLATS | 0.429 INCHES MINIMUM AND 0.439 INCHES MAXIMUM |