| MATERIAL DOCUMENT AND CLASSIFICATION | BS 3692 GRADE 8 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL OVERALL |
| NOMINAL THREAD SIZE | 8.00 MILLIMETERS |
| NUT STYLE | HEXAGON |
| OVERALL HEIGHT | 9.10 MILLIMETERS MAXIMUM |
| WASHER OUTSIDE DIAMETER | 18.00 MILLIMETERS MAXIMUM |
| WIDTH ACROSS FLATS | 12.73 MILLIMETERS MINIMUM AND 13.00 MILLIMETERS MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | BS 3382 PART 2 NATIONAL SPEC 1ST TREATMENT RESPONSE OR TD296 MFR REF 1ST TREATMENT RESPONSE AND BS 3382 PART 2 NATIONAL SPEC 2ND TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | ZINC AND CHROMATE OR PASSIVATE YELLOW OVERALL |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD PITCH IN MILLIMETERS | 1.25 |
| THREAD SERIES | ISO M |