| DISTANCE FROM CENTERLINE TO FLAT | 0.172 INCHES MINIMUM AND 0.172 INCHES MINIMUM AND 0.182 INCHES MAXIMUM0.182 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 1110 OVERALL |
| PILOT DIAMETER | 0.495 INCHES MINIMUM AND 0.495 INCHES MINIMUM AND 0.500 INCHES MAXIMUM0.500 INCHES MAXIMUM |
| PILOT LENGTH | 0.167 INCHES MINIMUM AND 0.167 INCHES MINIMUM AND 0.172 INCHES MAXIMUM0.172 INCHES MAXIMUM |
| NOMINAL THREAD SIZE | 0.250 INCHES0.250 INCHES |
| NUT DIAMETER | 0.610 INCHES MINIMUM AND 0.610 INCHES MINIMUM AND 0.640 INCHES MAXIMUM0.640 INCHES MAXIMUM |
| NUT HEIGHT | 0.354 INCHES MINIMUM AND 0.354 INCHES MINIMUM AND 0.364 INCHES MAXIMUM0.364 INCHES MAXIMUM |
| NUT STYLE | CLINCHCLINCH |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |
| THREAD CLASS | 2B2B |
| THREAD DIRECTION | RIGHT-HANDRIGHT-HAND |
| THREAD QUANTITY PER INCH | 2020 |
| THREAD SERIES | UNIFIED NATIONAL COARSE (UNC)UNIFIED NATIONAL COARSE (UNC) |