| COLOR | BLACK |
| FASTENER LENGTH | 0.35 INCHES MINIMUM AND 0.38 INCHES MAXIMUM |
| HEAD DIAMETER | 0.473 INCHES MINIMUM AND 0.492 INCHES MAXIMUM |
| HEAD HEIGHT | 0.162 INCHES MINIMUM AND 0.175 INCHES MAXIMUM |
| HEAD STYLE | PAN |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE III |
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW, MACHINE, PAN HEAD, CRUCIFORM RECESS, FULL THREAD, ALLOY STEEL |
| NOMINAL THREAD DIAMETER | 0.2500 INCHES |
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | AMS6382 NATIONAL STD/SPEC 1ST MATERIAL RESPONSE OR AMS6415 OR AMS6484 NATIONAL STD/SPEC 2ND MATERIAL RESPONSE OR AMS6322, AMS6325 OR AMS6327 NATIONAL STD/SPEC 3RD MATERIAL RESPONSE |
| SCREW MATERIAL | STEEL COMP 4140 OR STEEL COMP 4340 OR STEEL COMP 8740 |
| SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS-QQ-P-416,TY II,CL 2 NATIONAL STD/SPEC SINGLE TREATMENT RESPONSE |
| SCREW SURFACE TREATMENT | CADMIUM AND CHROMATE |
| SPECIFICATION/STANDARD DATA | 80205-NAS600 THRU NAS606 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| THREAD LENGTH | 0.35 INCHES MINIMUM AND 0.38 INCHES MAXIMUM |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 28 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |