| FASTENER LENGTH | 19.20 MILLIMETERS MINIMUM AND 20.00 MILLIMETERS MAXIMUM |
| HARDNESS RATING | 40.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM PRIMARY WASHER |
| HEAD HEIGHT | 4.1 MILLIMETERS MINIMUM AND 4.7 MILLIMETERS MAXIMUM |
| HEAD STYLE | HEXAGON |
| MATERIAL DOCUMENT AND CLASSIFICATION | GM 500-M 9.8 FSCM 11862 MFR REF SINGLE MATERIAL RESPONSE FASTENER |
| MATERIAL DOCUMENT AND CLASSIFICATION | SAE ASSN STD ALL MATERIAL RESPONSES PRIMARY WASHER |
| MATERIAL | STEEL OVERALL |
| NOMINAL THREAD DIAMETER | 6.0 MILLIMETERS |
| PRIMARY WASHER MATERIAL THICKNESS | 1.5 MILLIMETERS MINIMUM AND 1.8 MILLIMETERS MAXIMUM |
| PRIMARY WASHER OUTSIDE DIAMETER | 12.07 MILLIMETERS MINIMUM AND 12.50 MILLIMETERS MAXIMUM |
| PRIMARY WASHER STYLE | SPRING TENSION |
| WASHER QUANTITY | 1 |
| WIDTH BETWEEN FLATS | 9.78 MILLIMETERS MINIMUM AND 10.00 MILLIMETERS MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | GM 4435-M CODE A FSCM 11862 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PHOSPHATE OVERALL |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 16.2 MILLIMETERS MAXIMUM |
| THREAD PITCH IN MILLIMETERS | 1.0 |
| THREAD SERIES DESIGNATOR | M |