| MATERIAL | STEEL COMP E4340 OR |
| STEEL COMP 4340 OR |
| STEEL COMP 4140 OR |
| STEEL COMP 8740 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OR |
| MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OR |
| MIL-S-5626 MIL SPEC 3RD MATERIAL RESPONSE OR |
| MIL-S-6049 MIL SPEC 4TH MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| SHEAR STRENGTH | 95000 SINGLE POUNDS PER SQUARE INCH |
| HEAD STYLE | FLAT COUNTERSUNK UNDERCUT |
| HEAD HEIGHT | 0.0878 INCHES MINIMUM AND |
| 0.0898 INCHES MAXIMUM |
| HEAD MAJOR DIAMETER | 0.6287 INCHES MINIMUM AND |
| 0.6335 INCHES MAXIMUM |
| COUNTERSINK ANGLE | 100.0 DEGREES NOMINAL |
| SHANK STYLE | PIN-RIVET, STRAIGHT, THREADED |
| FASTENER LENGTH | 1.302 INCHES MINIMUM AND |
| 1.322 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 0.1270 INCHES MINIMUM AND |
| 0.1295 INCHES MAXIMUM |
| SHANK DIAMETER | 0.3110 INCHES MINIMUM AND |
| 0.3120 INCHES MAXIMUM |
| GRIP LENGTH | 0.822 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNJF |
| NOMINAL THREAD SIZE | 0.312 INCHES |
| THREAD CLASS | 3A |
| THREAD QUANTITY PER INCH | 24 |
| THREAD DIRECTION | RIGHT-HAND |
| LUBRICATION | CETYL ALCOHOL |
| SPECIAL FEATURES | FURNISHED W/SYNTHETIC RUBBER O RING |
| THE MANUFACTURERS DATA | |
| MANUFACTURERS CODE | 73197 |
| DESIGN CONTROL REFERENCE | HLT56A10-13 |