| FASTENER LENGTH | 1.906 INCHES MINIMUM AND 1.906 INCHES MINIMUM AND 1.953 INCHES MAXIMUM1.953 INCHES MAXIMUM |
| FEATURES PROVIDED | FINISHED HEADFINISHED HEAD |
| GRIP LENGTH | 1.234 INCHES MINIMUM AND 1.234 INCHES MINIMUM AND 1.266 INCHES MAXIMUM1.266 INCHES MAXIMUM |
| HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL32.0 ROCKWELL C MAXIMUM OVERALL |
| HEAD HEIGHT | 0.266 INCHES MINIMUM AND 0.266 INCHES MINIMUM AND 0.297 INCHES MAXIMUM0.297 INCHES MAXIMUM |
| HEAD STYLE | HEXAGONHEXAGON |
| HOLE CONFIGURATION STYLE | HEXAGON FLATSHEXAGON FLATS |
| HOLE DIAMETER | 0.065 INCHES MINIMUM AND 0.065 INCHES MINIMUM AND 0.075 INCHES MAXIMUM0.075 INCHES MAXIMUM |
| HOLE TYPE | DRILLEDDRILLED |
| HOLE QUANTITY | 33 |
| MATERIAL | STEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 4130 OR STEEL COMP 4037 OVERALL |
| MINIMUM TENSILE STRENGTH | 125000 POUNDS PER SQUARE INCH125000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.375 INCHES0.375 INCHES |
| WIDTH BETWEEN FLATS | 0.554 INCHES MINIMUM AND 0.554 INCHES MINIMUM AND 0.564 INCHES MAXIMUM0.564 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY2,CL3 FED SPEC SINGLE TREATMENT RESPONSE OVERALLQQ-P-416,TY2,CL3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM AND CADMIUM AND CHROMATE OVERALLCHROMATE OVERALL |
| THREAD CLASS | 3A3A |
| THREAD DIRECTION | RIGHT-HANDRIGHT-HAND |
| THREAD LENGTH | 0.640 INCHES MINIMUM AND 0.640 INCHES MINIMUM AND 0.719 INCHES MAXIMUM0.719 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC)UNIFIED NATIONAL COARSE (UNC) |
| THREAD QUANTITY PER INCH | 1616 |