| EXTENDED WASHER THICKNESS | 0.023 INCHES MINIMUM AND 0.028 INCHES MAXIMUM |
| EXTENDED WASHER DIAMETER | 0.375 INCHES NOMINAL |
| FASTENER LENGTH | 0.850 INCHES MINIMUM AND 0.880 INCHES MAXIMUM |
| HARDNESS RATING | 26.0 ROCKWELL C MINIMUM OVERALL AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| HEAD DIAMETER | 0.312 INCHES NOMINAL |
| HEAD HEIGHT | 0.087 INCHES MINIMUM AND 0.092 INCHES MAXIMUM |
| HEAD STYLE | ROUND EXTENDED WASHER |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| LOCKING FEATURE | PATCH THREADS OR PELLET THREADS OR STRIP THREADS |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6300 ASSN STD 1ST MATERIAL RESPONSE FASTENER OR MIL-S-6050 MIL SPEC 2ND MATERIAL RESPONSE FASTENER |
| MATERIAL | PLASTIC LOCKING FEATURE |
| MATERIAL | STEEL COMP 4037 FASTENER OR STEEL COMP 8630 FASTENER |
| PROPRIETARY CHARACTERISTICS | PACS |
| MINIMUM TENSILE STRENGTH | 125000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.164 INCHES |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY 2 CL 2 FED SPEC SINGLE TREATMENT RESPONSE FASTENER |
| SURFACE TREATMENT | CADMIUM FASTENER AND CHROMATE FASTENER |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.380 INCHES MINIMUM AND 0.410 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 32 |
| THREAD SERIES DESIGNATOR | UNJC |