MIL-S-1222, MIL-DTL-1222, MIL-S-21472
| STUDS | ||
|---|---|---|
| TYPE I | FULL BODY | |
| TYPE II | REDUCED | |
| TYPE III | CONSTANT STRENGTH BODY | |
| BOLTS | TYPE I | HEX |
| TYPE II | HEAVY HEX | |
| TYPE III | HEAVY HEX STRUCTURAL | |
| TYPE IV | ROUND HEAD | |
| TYPE V | ROUND HEAD SQUARE NECK | |
| NUTS | TYPE I | HEX |
| TYPE II | HEX JAM | |
| TYPE III | HEAVY HEX | |
| TYPE IV | HEAVY HEX JAM | |
| TYPE V | HEX SLOTTED | |
| STYLE A | WASHER FACED | |
| STYLE B | DOUBLE CHAMFERED | |
| STYLE | STUD END THREAD | NUT END THREAD |
| A | CLASS 5 | CLASS 3A |
| B | CLASS 5 | CLASS 2A |
| C | CLASS 3A | CLASS 3A |
| D | CLASS 3A | CLASS 2A |
| TYPE IV - CONTINUOUS THREAD | ||
| SCREWS | TYPE I | HEX CAP (FINISHED HEX BOLT) |
| TYPE II | HEX SOCKET CAP | |
| SHOULDER SCREWS | ||
