| THREAD SERIES | M |
| NOMINAL THREAD SIZE | 10.0 MILLIMETERS |
| THREAD PITCH IN MILLIMETERS | 1.50 |
| THREAD CLASS | 2B |
| THREAD DIRECTION | RIGHT-HAND |
| MATERIAL | PLASTIC POLYAMIDE LOCKING INSERT |
| STEEL OVERALL EXCEPT INSERT |
| SURFACE TREATMENT | ZINC OVERALL EXCEPT INSERT |
| HARDNESS RATING | 28.0 ROCKWELL C NOMINAL |
| NUT STYLE | HEXAGON |
| WASHER OUTSIDE DIAMETER | 21.8 MILLIMETERS NOMINAL |
| OVERALL HEIGHT | 13.5 MILLIMETERS NOMINAL |
| WASHER THICKNESS | 3.10 MILLIMETERS NOMINAL |
| WIDTH ACROSS FLATS | 15.0 MILLIMETERS NOMINAL |
| LOCKING FEATURE | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| TEMP RATING | 248.0 DEG FAHRENHEIT MAXIMUM |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NYLON-INSERT HEX FLANGE LOCKNUT |