| EXTENDED WASHER DIAMETER | 17.75 MILLIMETERS MINIMUM AND 18.25 MILLIMETERS MAXIMUM |
| EXTENDED WASHER THICKNESS | 5.95 MILLIMETERS MINIMUM AND 6.25 MILLIMETERS MAXIMUM |
| FASTENER LENGTH | 19.20 MILLIMETERS MINIMUM AND 20.00 MILLIMETERS MAXIMUM |
| HEAD HEIGHT | 6.85 MILLIMETERS MINIMUM AND 7.35 MILLIMETERS MAXIMUM |
| HEAD STYLE | HEXAGON EXTENDED WASHER |
| INTERNAL DRIVE STYLE | W/O INTERNAL DRIVE |
| MATERIAL DOCUMENT AND CLASSIFICATION | GM 6170-M,FSCM 11862 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL OVERALL |
| NONMACHINE NOMINAL THREAD DIAMETER | 8.0 MILLIMETERS |
| NONMACHINE THREAD STYLE | WIDE FLUTE (TYPE T) |
| SPECIAL FEATURES | WITH 24 SERRATIONS EQUALLY SPACED WITH SHARP EDGES |
| WIDTH BETWEEN FLATS | 12.73 MILLIMETERS MINIMUM AND 13.00 MILLIMETERS MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | GM-4342-M,CODE 10U8,FSCM 11862 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | ZINC OVERALL |