| FASTENER LENGTH | 1.375 INCHES NOMINAL |
| HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM |
| HEAD DIAMETER | 0.357 INCHES MINIMUM AND 0.373 INCHES MAXIMUM |
| HEAD HEIGHT | 0.122 INCHES MINIMUM AND 0.133 INCHES MAXIMUM |
| HEAD STYLE | PAN |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.190 INCHES |
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A575 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A576 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A108 ASSN STD SINGLE MATERIAL RESPONSE |
| SCREW MATERIAL | STEEL COMP 8630 |
| SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY 2 CL 3 FED SPEC ALL TREATMENT RESPONSES |
| SCREW SURFACE TREATMENT | CADMIUM AND CHROMATE |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 1.313 INCHES MINIMUM AND 1.375 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNF |
| THREAD QUANTITY PER INCH | 32 |