| CONCENTRIC HOLE DEPTH | 0.375 INCHES NOMINAL |
| FASTENER LENGTH | 0.572 INCHES NOMINAL |
| HEAD HEIGHT | 0.240 INCHES NOMINAL |
| HEAD STYLE | HEXAGON |
| INTERNAL THREAD LENGTH | 0.250 INCHES NOMINAL CONCENTRIC HOLE |
| MATERIAL DOCUMENT AND CLASSIFICATION | AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 303 OVERALL |
| NOMINAL THREAD DIAMETER | 0.500 INCHES |
| NOMINAL THREAD SIZE | 0.112 INCHES CONCENTRIC HOLE |
| SHOULDER LENGTH | 0.135 INCHES MINIMUM AND 0.140 INCHES MAXIMUM |
| SHOULDER DIAMETER | 0.880 INCHES MINIMUM AND 0.885 INCHES MAXIMUM |
| SPECIAL FEATURES | CONCENTRIC HOLE DEPTH 0.375 IN. NOMINAL |
| 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 | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.375 INCHES MINIMUM AND 0.407 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |
| THREAD SERIES | UNIFIED NATIONAL COARSE (UNC) CONCENTRIC HOLE |
| THREAD QUANTITY PER INCH | 13 |
| THREADS PER INCH | 40 CONCENTRIC HOLE |
| WIDTH BETWEEN FLATS | 1.000 INCHES NOMINAL |