| FASTENER LENGTH | 1.060 INCHES MINIMUM AND 1.150 INCHES MAXIMUM |
| HEAD HEIGHT | 0.750 INCHES MINIMUM AND 0.780 INCHES MAXIMUM |
| HEAD LENGTH | 0.374 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| HEAD STYLE | TEE NO. 2 |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | IRON ALLOY 660 OVERALL |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| WIDTH BETWEEN FLATS | 0.248 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2433 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | NICKEL OVERALL |
| TEE HEAD FLANGE THICKNESS | 0.052 INCHES MINIMUM AND 0.072 INCHES MAXIMUM |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.310 INCHES MINIMUM AND 0.370 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNF |
| THREAD QUANTITY PER INCH | 28 |