| DISTANCE FROM APERTURE CENTER TO MOUNTING HOLE CENTER | 0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM |
| CENTER TO CENTER DISTANCE BETWEEN MOUNTING HOLES ALONG WIDTH | 0.217 INCHES MINIMUM AND 0.221 INCHES MAXIMUM |
| HARDNESS RATING | 46.0 ROCKWELL C MAXIMUM |
| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| LUBRICATION | DRY FILM LUBRICANT |
| NUT LENGTH | 0.591 INCHES MAXIMUM |
| NUT HEIGHT | 0.281 INCHES MAXIMUM |
| NUT MOUNTING PROVISION | STRAIGHT HOLES |
| MATERIAL | STEEL OVERALL |
| MOUNTING HOLE ARRANGEMENT STYLE | 2 HOLES |
| MOUNTING HOLE DIAMETER | 0.098 INCHES MINIMUM AND 0.103 INCHES MAXIMUM |
| NOMINAL THREAD SIZE | 0.250 INCHES |
| PLATE THICKNESS | 0.055 INCHES MAXIMUM |
| PLATE WIDTH | 0.437 INCHES MAXIMUM |
| THREAD SERIES | UNIFIED NATIONAL JOINT FINE (UNJF) |
| THREAD QUANTITY PER INCH | 28 |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416, TY2 CL3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |
| TEMP RATING | 450.0 FAHRENHEIT NOMINAL |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |