| DISTANCE ACROSS FLATS | 0.245 INCHES MINIMUM AND 0.248 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | BS NATIONAL SPEC SINGLE MATERIAL RESPONSE OR BS 970 PART 1 GRADE 220-07 NATIONAL SPEC SINGLE MATERIAL RESPONSE |
| MATERIAL | STEEL |
| NOMINAL THREAD SIZE | 3.60 MILLIMETERS NUT THREAD |
| NOMINAL THREAD SIZE | 3.60 MILLIMETERS STUD THREAD |
| NUT END SHANK LENGTH | 0.079 INCHES MINIMUM AND 0.109 INCHES MAXIMUM |
| OVERALL LENGTH | 1.092 INCHES NOMINAL |
| SHOULDER LENGTH | 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM |
| SPECIAL FEATURES | SHANK DIA 3.20 MM NOM |
| STYLE DESIGNATOR | SHOULDERED |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | DTD 904 NATIONAL SPEC ALL TREATMENT RESPONSES OVERALL |
| SURFACE TREATMENT | CADMIUM AND CHROMATE |
| THREAD CLASS | NORMAL STUD THREAD |
| THREAD DIRECTION | RIGHT-HAND NUT THREAD |
| THREAD DIRECTION | RIGHT-HAND STUD THREAD |
| THREAD LENGTH | 0.327 INCHES NOMINAL NUT THREAD |
| THREAD LENGTH | 0.327 INCHES NOMINAL STUD THREAD |
| THREAD SERIES DESIGNATOR | BA NUT THREAD |
| THREAD SERIES DESIGNATOR | BA STUD THREAD |
| THREAD PITCH IN MILLIMETERS | 0.66 NUT THREAD |
| THREAD PITCH IN MILLIMETERS | 0.66 STUD THREAD |