| FASTENER LENGTH | 5.090 INCHES NOMINAL |
| HARDNESS RATING | 51.0 ROCKWELL C NOMINAL OVERALL |
| HEAD INSIDE DIAMETER | 0.079 INCHES NOMINAL |
| HEAD LENGTH | 0.814 INCHES MAXIMUM |
| HEAD STYLE | TEE NO. 4 |
| MATERIAL DOCUMENT AND CLASSIFICATION | AISI 431 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 431 OVERALL |
| MINIMUM TENSILE STRENGTH | 191400 POUNDS PER SQUARE INCH |
| MINIMUM YIELD STRENGTH | 185000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.312 INCHES |
| TEE BOLT CYLINDRICAL HEAD DIAMETER | 0.303 INCHES MINIMUM AND 0.311 INCHES MAXIMUM |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 3.395 INCHES MINIMUM AND 3.500 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 24 |
| THREAD SERIES DESIGNATOR | UNF |