| THREAD SERIES DESIGNATOR | UNF |
| NOMINAL THREAD DIAMETER | 0.438 INCHES |
| THREAD QUANTITY PER INCH | 20 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.320 INCHES MINIMUM AND |
| 0.330 INCHES MAXIMUM |
| FASTENER LENGTH | 1.850 INCHES NOMINAL |
| MATERIAL | STEEL COMP E4340 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM HEAD |
| CHROMIUM GRIP |
| CADMIUM THREADS |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | CPT8204,FSCM13002 MFR REF SINGLE TREATMENT RESPONSE HEAD |
| CPT8205,FSCM13002 MFR REF SINGLE TREATMENT RESPONSE GRIP |
| CPT8204,FSCM13002 MFR REF SINGLE TREATMENT RESPONSE THREADS |
| HEAD STYLE | DEE |
| HEAD DIAMETER | 0.880 INCHES NOMINAL |
| HEAD HEIGHT | 0.190 INCHES NOMINAL |
| DISTANCE FROM CENTERLINE TO FLAT | 0.370 INCHES MINIMUM AND |
| 0.375 INCHES MAXIMUM |
| SHOULDER SHAPE | ROUND FIRST SHOULDER |
| SHOULDER DIAMETER | 0.5595 INCHES MINIMUM AND |
| 0.5615 INCHES MAXIMUM FIRST SHOULDER |
| SHOULDER LENGTH | 1.520 INCHES MINIMUM AND |
| 1.530 INCHES MAXIMUM FIRST SHOULDER |
| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 1.730 INCHES MINIMUM AND |
| 1.740 INCHES MAXIMUM FIRST HOLE |
| SHANK UNTHREADED HOLE DIAMETER | 0.105 INCHES MINIMUM AND |
| 0.108 INCHES MAXIMUM FIRST HOLE |
| TEST DATA DOCUMENT | 81349-MIL-I-6868 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| THE MANUFACTURERS DATA | |
| MANUFACTURERS CODE | 13002 |
| DESIGN CONTROL REFERENCE | 9936B221A |