| FASTENER LENGTH | 3.300 INCHES NOMINAL |
| HARDNESS RATING | 27.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM OVERALL |
| HEAD LENGTH | 0.750 INCHES NOMINAL |
| HEAD STYLE | TEE NO. 5 |
| MATERIAL | STEEL COMP 4037 OVERALL |
| MINIMUM YIELD STRENGTH | 3130 POUNDS PER SQUARE INCH |
| MINIMUM TENSILE STRENGTH | 4080 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| SPECIAL FEATURES | FURNISHED WITH ONE CRES BUSHING,PER MIL-S-509 TYPE 302 ANNEALED OR COMP 301,1/4 HARD,MTD OVER TEE HEAD |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |
| TEE BOLT CYLINDRICAL HEAD DIAMETER | 0.400 INCHES NOMINAL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 2.440 INCHES NOMINAL |
| THREAD QUANTITY PER INCH | 28 |
| THREAD SERIES DESIGNATOR | UNF |