| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 5.525 INCHES MINIMUM AND 5.535 INCHES MAXIMUM FIRST HOLE |
| FASTENER LENGTH | 5.650 INCHES MINIMUM AND 5.680 INCHES MAXIMUM |
| FEATURES PROVIDED | FINISHED HEAD |
| GRIP LENGTH | 4.720 INCHES MINIMUM AND 4.760 INCHES MAXIMUM |
| HARDNESS RATING | 28.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL |
| HEAD HEIGHT | 0.280 INCHES NOMINAL |
| HEAD STYLE | HEXAGON |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 8640 OR STEEL COMP 8740 OR STEEL COMP 4140 OVERALL |
| NOMINAL THREAD DIAMETER | 0.375 INCHES |
| SPECIAL FEATURES | 4.320 IN. MIN,4.400 IN. MAX OF GRIP LENGTH FROM THD END,UNDER CUT |
| SHANK UNTHREADED HOLE DIAMETER | 0.102 INCHES MINIMUM AND 0.107 INCHES MAXIMUM FIRST HOLE |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.890 INCHES MINIMUM AND 0.960 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNF |
| THREAD QUANTITY PER INCH | 24 |
| WIDTH BETWEEN FLATS | 0.553 INCHES MINIMUM AND 0.565 INCHES MAXIMUM |