FASTENER LENGTH | 0.950 INCHES MINIMUM AND 0.980 INCHES MAXIMUM |
GRIP DIAMETER | 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM |
GRIP LENGTH | 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM |
HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL |
HEAD DIAMETER | 0.477 INCHES MINIMUM AND 0.492 INCHES MAXIMUM |
HEAD HEIGHT | 0.140 INCHES MINIMUM AND 0.150 INCHES MAXIMUM |
HEAD STYLE | PAN NO. 2 |
INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) |
MATERIAL | STEEL COMP E4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8735 OR STEEL COMP 6150 OVERALL |
MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
NOMINAL THREAD DIAMETER | 0.250 INCHES |
SPECIAL FEATURES | INTERNAL DRIVE RIBBED |
SPECIFICATION/STANDARD DATA | 80205-NAS1578 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
SURFACE FINISH | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
SURFACE FINISH | 32.0 MICROINCHES GRIP |
SURFACE FINISH | 32.0 MICROINCHES THREADS |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY 2 CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |
THREAD CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.378 INCHES MINIMUM AND 0.428 INCHES MAXIMUM |
THREAD SERIES DESIGNATOR | UNJF |
THREAD QUANTITY PER INCH | 28 |