| COLOR | BLACK FASTENER |
| COLOR | BLACK STAND-OFF |
| FASTENER LENGTH | 1.200 INCHES NOMINAL |
| HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM FASTENER |
| HEAD HEIGHT | 0.172 INCHES MINIMUM AND 0.190 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON |
| INTERNAL DRIVE STYLE | W/O INTERNAL DRIVE |
| MATERIAL ACCOMMODATED THICKNESS | 0.501 INCHES MINIMUM AND 0.562 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE FASTENER |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A493 ASSN STD ALL MATERIAL RESPONSES STAND-OFF |
| MATERIAL | STEEL COMP 630 FASTENER |
| MATERIAL | STEEL COMP XM-7 OR STEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 316 OR STEEL COMP 384 STAND-OFF |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| SPECIAL FEATURES | WASHER UNDER HEAD; THICKNESS 0.015 IN. MIN 0.035 IN. MAX |
| WIDTH BETWEEN FLATS | 0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-13924 CL 2 MIL SPEC SINGLE TREATMENT RESPONSE FASTENER |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-13924 CL 2 MIL SPEC SINGLE TREATMENT RESPONSE STAND-OFF |
| SURFACE TREATMENT | OXIDE FASTENER |
| SURFACE TREATMENT | OXIDE STAND-OFF |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD CLASS | 3A |
| THREAD LENGTH | 0.400 INCHES NOMINAL |
| THREAD SERIES DESIGNATOR | UNJF |
| THREAD QUANTITY PER INCH | 28 |