THREAD SERIES DESIGNATOR | UNJF |
NOMINAL THREAD DIAMETER | 0.625 INCHES |
THREAD QUANTITY PER INCH | 18 |
THREAD CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.626 INCHES NOMINAL |
FASTENER LENGTH | 1.741 INCHES MINIMUM AND |
| 1.761 INCHES MAXIMUM |
MATERIAL | STEEL COMP 4340 OR |
| STEEL COMP 8740 OVERALL |
MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5000 UNS G43400 MIL SPEC 1ST MATERIAL RESPONSE OR |
| MILS-6049 MIL SPEC 2ND MATERIAL RESPONSE OR |
| AMS6322 UNS G 87400 ASSN STD 2ND MATERIAL RESPONSE OVERALL |
SURFACE TREATMENT | CADMIUM AND |
| CHROMATE OVERALL |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2 CL 2 FED SPEC ALL TREATMENT RESPONSES OVERALL |
HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND |
| 40.0 ROCKWELL C MAXIMUM OVERALL |
MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
HEAD STYLE | HEXAGON |
HEAD HEIGHT | 0.312 INCHES MINIMUM AND |
| 0.327 INCHES MAXIMUM |
WIDTH BETWEEN FLATS | 0.928 INCHES MINIMUM AND |
| 0.940 INCHES MAXIMUM |
GRIP LENGTH | 1.115 INCHES MINIMUM AND |
| 1.135 INCHES MAXIMUM |
GRIP DIAMETER | 0.623 INCHES MINIMUM AND |
| 0.624 INCHES MAXIMUM |
SURFACE FINISH | 125.0 MICROINCHES FIRST HOLE |
| 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| 125.0 MICROINCHES SIDES OF HEAD |
| 32.0 MICROINCHES GRIP |
| 125.0 MICROINCHES TOP OF HEAD |
| 32.0 MICROINCHES THREADS |
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 1.409 INCHES MINIMUM AND |
| 1.429 INCHES MAXIMUM FIRST HOLE |
SHANK UNTHREADED HOLE DIAMETER | 0.141 INCHES MINIMUM AND |
| 0.151 INCHES MAXIMUM FIRST HOLE |
FEATURES PROVIDED | FINISHED HEAD |
SPECIFICATION/STANDARD DATA | 80205-NAS6210 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
SUPPLEMENTARY FEATURES | CLOSE TOL APPL |