| HARDNESS RATING | 49.0 ROCKWELL C MINIMUM OVERALL |
| HEAD HEIGHT | 0.055 INCHES MINIMUM AND 0.060 INCHES MAXIMUM |
| HEAD MAJOR DIAMETER | 0.306 INCHES MINIMUM AND 0.322 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6049 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 8740 OVERALL |
| NOMINAL THREAD SIZE | 0.250 INCHES |
| SHANK DIAMETER | 0.157 INCHES MINIMUM AND 0.159 INCHES MAXIMUM |
| SHANK STYLE | STUMP |
| SHEAR STRENGTH | 4010 DOUBLE POUNDS PER SQUARE INCH |
| SPECIAL FEATURES | HEAD IS CHAMFERRED 0.031 INCHES AT 45 DEGREES |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE2,CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD SERIES DESIGNATOR | UNJC |