| 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 | 26512 |
| DESIGN CONTROL REFERENCE | A51B24668-11 |
| THREAD SERIES DESIGNATOR | UNJF |
| NOMINAL THREAD DIAMETER | 0.375 INCHES |
| THREAD QUANTITY PER INCH | 24 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.610 INCHES MINIMUM |
| FASTENER LENGTH | 3.928 INCHES MINIMUM AND |
| 3.933 INCHES MAXIMUM |
| MATERIAL | STEEL OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | GM1010 C0MP 4330V FSCM 26512 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | M1L0C-8837 TY 2 CL 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| HARDNESS RATING | 46.0 ROCKWELL C MINIMUM AND |
| 49.0 ROCKWELL C MAXIMUM OVERALL |
| STYLE DESIGNATOR | CONCENTRIC HOLE UNTHREADED |
| SHOULDER DIAMETER | 1.1175 INCHES MINIMUM AND |
| 1.1186 INCHES MAXIMUM |
| SHOULDER LENGTH | 3.318 INCHES MINIMUM AND |
| 3.323 INCHES MAXIMUM |
| CONCENTRIC HOLE DEPTH | 3.018 INCHES MINIMUM AND |
| 3.033 INCHES MAXIMUM |
| CONCENTRIC HOLE DIAMETER | 0.499 INCHES MINIMUM AND |
| 0.506 INCHES MAXIMUM |
| HEAD STYLE | ROUND W/WRENCH FLATS |
| HEAD DIAMETER | 1.710 INCHES NOMINAL |
| HEAD HEIGHT | 0.140 INCHES MINIMUM AND |
| 0.150 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 1.625 INCHES NOMINAL |
| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 3.731 INCHES MINIMUM AND |
| 3.736 INCHES MAXIMUM FIRST HOLE |
| SHANK UNTHREADED HOLE DIAMETER | 0.106 INCHES MINIMUM AND |
| 0.116 INCHES MAXIMUM FIRST HOLE |