| THREAD CLASS | 2A |
| FASTENER LENGTH | 1.250 INCHES NOMINAL |
| HEAD STYLE | PAN NO. 2 |
| HEAD DIAMETER | 0.205 INCHES MINIMUM AND 0.219 INCHES MAXIMUM |
| HEAD HEIGHT | 0.058 INCHES MINIMUM AND 0.068 INCHES MAXIMUM |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| NOMINAL THREAD DIAMETER | 0.112 INCHES |
| MINIMUM TENSILE STRENGTH | 55000 POUNDS PER SQUARE INCH |
| SCREW MATERIAL | COPPER ALLOY |
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-613 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-B-626 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-W-321 FED SPEC SINGLE MATERIAL RESPONSE |