| EXTENDED WASHER DIAMETER | 0.460 INCHES MINIMUM AND 0.470 INCHES MAXIMUM |
| EXTENDED WASHER THICKNESS | 0.026 INCHES MINIMUM AND 0.046 INCHES MAXIMUM |
| FASTENER LENGTH | 1.328 INCHES MINIMUM AND 1.358 INCHES MAXIMUM |
| HEAD HEIGHT | 0.194 INCHES MINIMUM AND 0.234 INCHES MAXIMUM |
| HEAD MINOR DIAMETER | 0.297 INCHES MINIMUM AND 0.312 INCHES MAXIMUM |
| HEAD STYLE | SPLINE EXTENDED WASHER |
| INTERNAL THREAD CLASS | 3B CONCENTRIC HOLE |
| INTERNAL THREAD DIRECTION | RIGHT-HAND CONCENTRIC HOLE |
| INTERNAL THREAD LENGTH | 0.300 INCHES MINIMUM AND 0.345 INCHES MAXIMUM CONCENTRIC HOLE |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP XM-13 OVERALL |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| NOMINAL THREAD SIZE | 0.138 INCHES CONCENTRIC HOLE |
| STYLE DESIGNATOR | CONCENTRIC HOLE THREADED |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.372 INCHES MINIMUM AND 0.493 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 28 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |
| THREAD SERIES | UNJC CONCENTRIC HOLE |
| THREADS PER INCH | 32 CONCENTRIC HOLE |