THREAD SERIES DESIGNATOR | UNF |
NOMINAL THREAD DIAMETER | 0.190 INCHES |
THREAD QUANTITY PER INCH | 32 |
THREAD CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.251 INCHES MINIMUM AND |
| 0.363 INCHES MAXIMUM |
FASTENER LENGTH | 0.385 INCHES MINIMUM AND |
| 0.415 INCHES MAXIMUM |
MATERIAL | STEEL COMP E4340 OR |
| STEEL COMP 8740 OR |
| STEEL COMP 8735 OR |
| STEEL COMP 6150 OR |
| STEEL COMP 4140 OR |
| STEEL COMP 4037 OVERALL |
MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OR |
| MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OR |
| MIL-S-6098 MIL SPEC 3RD MATERIAL RESPONSE OR |
| MIL-S-8503 MIL SPEC 4TH MATERIAL RESPONSE OR |
| MIL-S-5626 MIL SPEC 5TH MATERIAL RESPONSE OR |
| AMS 6300 ASSN STD 6TH MATERIAL RESPONSE OVERALL |
SURFACE TREATMENT | CADMIUM OVERALL |
HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND |
| 40.0 ROCKWELL C MAXIMUM OVERALL |
MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
HEAD STYLE | FLAT COUNTERSUNK |
HEAD DIAMETER | 0.328 INCHES MINIMUM AND |
| 0.385 INCHES MAXIMUM |
COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND |
| 101.0 DEGREES MAXIMUM |
INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) |
LOCKING FEATURE | STRIP THREADS |
SURFACE FINISH | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| 32.0 MICROINCHES GRIP |
| 32.0 MICROINCHES THREADS |
SPECIFICATION/STANDARD DATA | 80205-NAS1163 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |