| MATERIAL | STEEL |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-24149 MIL SPEC SINGLE MATERIAL RESPONSE |
| STYLE DESIGNATOR | WELDING |
| SHOULDER DIAMETER | 0.625 INCHES MINIMUM AND |
| 0.687 INCHES MAXIMUM |
| SHOULDER LENGTH | 0.093 INCHES MINIMUM AND |
| 0.125 INCHES MAXIMUM |
| UNTHREADED END DIAMETER | 0.325 INCHES MINIMUM AND |
| 0.335 INCHES MAXIMUM |
| UNTHREADED END LENGTH | 2.735 INCHES MINIMUM AND |
| 2.813 INCHES MAXIMUM |
| LENGTH EXCLUDING FLUXED WELDING TIP | 3.750 INCHES MINIMUM AND |
| 3.781 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNC NUT THREAD |
| NOMINAL THREAD SIZE | 0.375 INCHES NUT THREAD |
| THREAD CLASS | 2A NUT THREAD |
| THREAD QUANTITY PER INCH | 16 NUT THREAD |
| THREAD DIRECTION | RIGHT-HAND NUT THREAD |
| THREAD LENGTH | 0.750 INCHES NOMINAL |
| FEATURES PROVIDED | FLUX |
| SPECIAL FEATURES | WELDING END TO BE FLUX COATED WITH COMMERCIALLY PURE ALUMINUM |
| NONDEFINITIVE SPEC/STD DATA | 2 TYPE AND |
| 4 CLASS |
| DEPARTURE FROM CITED DESIGNATOR | AS MODIFIED BY THREAD LENGTH |
| OVERALL LENGTH AFTER WELDING | 3.125 INCHES NOMINAL |
| SPEC/STD CONTROLLING DATA | |
| MANUFACTURERS CODE | 81349 |
| NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MIL-S-24149 |
| NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | M24149/1-554 |