| 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 LENGTH | 0.560 INCHES MINIMUM AND 0.564 INCHES MAXIMUM |
| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| OVERALL HEIGHT | 0.660 INCHES MAXIMUM |
| MATERIAL | IRON ALLOY 660 SHELL |
| MATERIAL | IRON ALLOY 660 NUT |
| MATERIAL | STEEL COMP 321 OR STEEL COMP 305 OR STEEL COMP 302 OR IRON ALLOY 660 BASE |
| MOUNTING HOLE DIAMETER | 0.098 INCHES MINIMUM AND 0.103 INCHES MAXIMUM |
| MOUNTING HOLE ARRANGEMENT STYLE | 2 HOLES |
| NOMINAL THREAD SIZE | 0.250 INCHES |
| NUT HEIGHT | 0.251 INCHES MAXIMUM |
| NUT MOUNTING PROVISION | STRAIGHT HOLES |
| NUT STYLE | PLATE |
| NUT LENGTH | 0.791 INCHES MAXIMUM |
| PLATE THICKNESS | 0.040 INCHES MAXIMUM |
| PLATE WIDTH | 0.485 INCHES MINIMUM AND 0.501 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 1 FED SPEC SINGLE TREATMENT RESPONSE OR QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE SHELL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 1 FED SPEC SINGLE TREATMENT RESPONSE OR QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE BASE |
| SURFACE TREATMENT | CADMIUM AND CHROMATE BASE |
| SURFACE TREATMENT | CADMIUM AND CHROMATE SHELL |
| TEMP RATING | 450.0 FAHRENHEIT MAXIMUM |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD SERIES | UNIFIED NATIONAL JOINT FINE (UNJF) |
| THREAD QUANTITY PER INCH | 28 |