| FASTENER LENGTH | 2.438 INCHES MINIMUM AND 2.500 INCHES MAXIMUM |
| HEAD DIAMETER | 0.382 INCHES MINIMUM AND 0.408 INCHES MAXIMUM |
| HEAD HEIGHT | 0.139 INCHES MINIMUM AND 0.153 INCHES MAXIMUM |
| HEAD STYLE | ROUND |
| NONDEFINITIVE SPEC/STD DATA | 1 TYPE AND 1S STYLE |
| NONMACHINE NOMINAL THREAD DIAMETER | 0.216 INCHES |
| NONMACHINE THREAD STYLE | WOOD SCREW (TYPE WD) |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-613,COMP 1 FED SPEC 1ST MATERIAL RESPONSE OVERALL OR QQ-B-626,COMP 1 FED SPEC 1ST MATERIAL RESPONSE OVERALL OR QQ-B-728,COMP B FED SPEC 2ND MATERIAL RESPONSE OVERALL OR QQ-W-321,COMP 6 FED SPEC 2ND MATERIAL RESPONSE OVERALL OR QQ-W-321,COMP 7 FED SPEC 3RD MATERIAL RESPONSE OVERALL |
| MATERIAL | COPPER ALLOY 268 OVERALL OR COPPER ALLOY 260 OVERALL OR COPPER ALLOY 270 OVERALL |