| HARDNESS RATING | 35.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM |
| OVERALL LENGTH | 4.476 INCHES MINIMUM AND 4.496 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS6322 ASSN STD 1ST MATERIAL RESPONSE OR AMS6382 ASSN STD 2ND MATERIAL RESPONSE |
| MATERIAL | STEEL COMP 8740 OR STEEL COMP 4140 |
| NOMINAL THREAD SIZE | 0.375 INCHES NUT THREAD |
| NOMINAL THREAD SIZE | 0.375 INCHES STUD THREAD |
| SPECIAL FEATURES | ADDITIONAL THREAD ON NUT END. 0.594 IN. LONG. THREAD 0.438-20 UNF-3A |
| SURFACE FINISH | 32.0 MICROINCHES NUT THD |
| SURFACE FINISH | 32.0 MICROINCHES SHANK |
| SURFACE FINISH | 32.0 MICROINCHES STUD THD |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |
| THREAD DIRECTION | RIGHT-HAND NUT THREAD |
| THREAD DIRECTION | RIGHT-HAND STUD THREAD |
| THREAD CLASS | 3A NUT THREAD |
| THREAD CLASS | 3A STUD THREAD |
| THREAD LENGTH | 0.782 INCHES MINIMUM AND 0.842 INCHES MAXIMUM NUT THREAD |
| THREAD LENGTH | 0.852 INCHES MINIMUM AND 0.872 INCHES MAXIMUM STUD THREAD |
| THREAD SERIES DESIGNATOR | UNF NUT THREAD |
| THREAD SERIES DESIGNATOR | UNS STUD THREAD |
| THREAD QUANTITY PER INCH | 16 STUD THREAD |
| THREAD QUANTITY PER INCH | 24 NUT THREAD |