| EXTENDED WASHER THICKNESS | 0.89 MILLIMETERS MINIMUM AND 1.39 MILLIMETERS MAXIMUM |
| EXTENDED WASHER DIAMETER | 15.85 MILLIMETERS MINIMUM AND 17.17 MILLIMETERS MAXIMUM |
| FASTENER LENGTH | 18.25 MILLIMETERS MINIMUM AND 19.05 MILLIMETERS MAXIMUM |
| HEAD HEIGHT | 5.28 MILLIMETERS MINIMUM AND 5.84 MILLIMETERS MAXIMUM |
| HEAD STYLE | HEXAGON EXTENDED WASHER |
| INTERNAL DRIVE STYLE | HEXAGON |
| MATERIAL | STEEL OVERALL |
| PROPRIETARY CHARACTERISTICS | PACS |
| NONMACHINE NOMINAL THREAD DIAMETER | 0.312 INCHES |
| NONMACHINE THREAD STYLE | DOG TYPE (TYPE B OR C) |
| WIDTH BETWEEN FLATS | 12.45 MILLIMETERS MINIMUM AND 12.70 MILLIMETERS MAXIMUM |
| WIDTH ACROSS FLATS | 12.45 MILLIMETERS MINIMUM AND 12.70 MILLIMETERS MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | IE397,FSCM 11083 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL OR ZINC OVERALL |