| THREAD SERIES DESIGNATOR | UNC |
| NOMINAL THREAD DIAMETER | 0.138 INCHES |
| THREAD QUANTITY PER INCH | 32 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.125 INCHES NOMINAL |
| FASTENER LENGTH | 0.125 INCHES NOMINAL |
| MATERIAL | STEEL COMP 302 OR |
| STEEL COMP 304 OR |
| STEEL COMP 305 OR |
| STEEL COMP 316 OR |
| STEEL COMP 384 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD ALL MATERIAL RESPONSES OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| HARDNESS RATING | 39.0 ROCKWELL C MINIMUM AND |
| 45.0 ROCKWELL C MAXIMUM OVERALL |
| MINIMUM TENSILE STRENGTH | 80000 POUNDS PER SQUARE INCH |
| HEAD STYLE | KNURLED NO. 1 |
| HEAD DIAMETER | 0.218 INCHES MINIMUM AND |
| 0.226 INCHES MAXIMUM |
| HEAD HEIGHT | 0.134 INCHES MINIMUM AND |
| 0.138 INCHES MAXIMUM |
| INTERNAL DRIVE STYLE | HEXAGON |
| WIDTH ACROSS FLATS | 0.109 INCHES MINIMUM AND |
| 0.111 INCHES MAXIMUM |
| SPECIFICATION/STANDARD DATA | 81348-FF-S-86 GOVERNMENT SPECIFICATION |
| NONDEFINITIVE SPEC/STD DATA | 6 TYPE AND |
| 6-32 SIZE AND |
| 1/8IN. LENGTH AND |
| 3A CLASS AND |
| UNC SERIES |
| SUPPLEMENTARY FEATURES | FSCM 80204-ANSI B18.3 TABLE 3 SIZE 6 |
| SPEC/STD CONTROLLING DATA | |
| MANUFACTURERS CODE | 81348 |
| NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | FF-S-86 |