| COLOR | BLACK OVERALL |
| FASTENER LENGTH | 0.719 INCHES MINIMUM AND 0.781 INCHES MAXIMUM |
| HARDNESS RATING | 28.00 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM OVERALL |
| HEAD HEIGHT | 0.096 INCHES MINIMUM AND 0.110 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON |
| INTERNAL DRIVE STYLE | HEXAGON |
| MATERIAL DOCUMENT AND CLASSIFICATION | SAE 1022 NATIONAL STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 1022 OVERALL |
| III PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW, THREAD FORMING |
| PROPRIETARY CHARACTERISTICS | PACS |
| NONMACHINE NOMINAL THREAD DIAMETER | 0.164 INCHES |
| NONMACHINE THREAD STYLE | DOG TYPE (TYPE B OR C) |
| WIDTH ACROSS FLATS | 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 0.272 INCHES MINIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MILLER SPEC 168459 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | ZINC OVERALL |