| DISTANCE FROM LARGEST DIAMETER OF BEARING SURFACE OF HEAD TO RIBS | 1.330 INCHES NOMINAL |
| FASTENER LENGTH | 4.270 INCHES MAXIMUM |
| FEATURES PROVIDED | CASEHARDENED |
| HARDNESS RATING | 38.0 ROCKWELL C NOMINAL OVERALL |
| HEAD DIAMETER | 0.880 INCHES NOMINAL |
| HEAD HEIGHT | 0.250 INCHES NOMINAL |
| HEAD STYLE | PAN NO. 2 |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-W-405 FED SPEC ALL MATERIAL RESPONSES OVERALL |
| MATERIAL | STEEL COMP 5140 OVERALL |
| MINIMUM TENSILE STRENGTH | 150000 POUNDS PER SQUARE INCH |
| MINIMUM YIELD STRENGTH | 120000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.437 INCHES |
| RIB LENGTH | 0.250 INCHES NOMINAL |
| RIB MAJOR DIAMETER | 0.640 INCHES NOMINAL |
| RIB MINOR DIAMETER | 0.635 INCHES NOMINAL |
| SHOULDER DIAMETER | 0.618 INCHES MINIMUM AND 0.624 INCHES MAXIMUM SECOND SHOULDER |
| SHOULDER LENGTH | 1.330 INCHES MINIMUM AND 1.990 INCHES MAXIMUM SECOND SHOULDER |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325,TY 2,CL 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OR ZINC OVERALL |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.700 INCHES MINIMUM |
| THREAD SERIES DESIGNATOR | UNC |