| HEAD HEIGHT | 0.531 INCHES MINIMUM AND 0.563 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON |
| MATERIAL DOCUMENT AND CLASSIFICATION | GRADE 8 PER SAE J429 MIL STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL OVERALL |
| SPECIAL FEATURES | PLATED WITH CLEAR ZINC COATING AND WITH YELLOW DICHROMATE;MINIMUM TENSILE STRENGTH 150,000 PSI FOR 1/4-1-1/2 INCH |
| SPECIAL TEST FEATURES | BEFORE COATING IFI 166 PERMISSIBLE AFTER COATING |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | COATING IRON/ZINC 5C PER ASTM F1941 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 9 |
| WIDTH BETWEEN FLATS | 1.465 INCHES MINIMUM AND 1.516 INCHES MAXIMUM |