| FASTENER LENGTH | 0.344 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| HARDNESS RATING | 23.0 ROCKWELL C MINIMUM FASTENER AND 40.0 ROCKWELL C MAXIMUM FASTENER |
| HARDNESS RATING | 40.0 ROCKWELL C MINIMUM PRIMARY WASHER AND 50.0 ROCKWELL C MAXIMUM PRIMARY WASHER |
| HEAD DIAMETER | 0.306 INCHES MINIMUM AND 0.322 INCHES MAXIMUM |
| HEAD HEIGHT | 0.105 INCHES MINIMUM AND 0.115 INCHES MAXIMUM |
| HEAD STYLE | PAN |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| MATERIAL DOCUMENT AND CLASSIFICATION | SAE ASSN STD ALL MATERIAL RESPONSES FASTENER |
| MATERIAL DOCUMENT AND CLASSIFICATION | SAE ASSN STD ALL MATERIAL RESPONSES PRIMARY WASHER |
| MATERIAL | STEEL OVERALL |
| PRIMARY WASHER MATERIAL THICKNESS | 0.018 INCHES MINIMUM AND 0.023 INCHES MAXIMUM |
| PRIMARY WASHER OUTSIDE DIAMETER | 0.305 INCHES MINIMUM AND 0.320 INCHES MAXIMUM |
| PRIMARY WASHER STYLE | FLAT EXTERNAL TEETH |
| PROPRIETARY CHARACTERISTICS | PACS |
| MINIMUM TENSILE STRENGTH | 120000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.164 INCHES |
| WASHER QUANTITY | 1 |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | GM 4252-M,FSCM 24617 MFR REF ALL TREATMENT RESPONSES OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL OR ZINC OVERALL |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.282 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 32 |
| THREAD SERIES DESIGNATOR | UNC |