| COUNTERSINK ANGLE | 100.0 DEGREES NOMINAL |
| FASTENER LENGTH | 1.035 INCHES MINIMUM AND 1.055 INCHES MAXIMUM |
| GRIP LENGTH | 0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM |
| HEAD HEIGHT | 0.1263 INCHES MINIMUM AND 0.1283 INCHES MAXIMUM |
| HEAD MAJOR DIAMETER | 0.6287 INCHES MINIMUM AND 0.6335 INCHES MAXIMUM |
| HEAD MINOR DIAMETER | 0.597 INCHES MINIMUM AND 0.604 INCHES MAXIMUM |
| HEAD STYLE | FLUSH COUNTERSUNK |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5629 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP XM-13 OVERALL |
| NOMINAL THREAD SIZE | 0.3125 INCHES |
| SHANK STYLE | PIN-RIVET, STRAIGHT, THREADED |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | PIN-RIVET,THREADED,TENSION,100 DEGREE C'SUNK HEAD,HEX POINT DRIVE,0.0156 OVERSIZE,CRES (125 KSI FSU) |
| SHANK DIAMETER | 0.3271 INCHES MINIMUM AND 0.3276 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 0.1270 INCHES MINIMUM AND 0.1295 INCHES MAXIMUM |
| SPECIFICATION/STANDARD DATA | 76301-ST3-813 MANUFACTURERS STANDARD |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2700,METHOD 1 OR 2 NATIONAL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 24 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |