- Self-locking nuts have a reduced height and are used in limited space applications where access is a problem
 - These nuts are rated at a max temperature of 450° F and have a tensile strength of 160,000 psi
 
| Type | Nut | 
| Style | Self-Locking | 
| Size | #10-32 | 
| Material | Steel | 
| Max Temp. | 250° F | 
| Thread Style | Fine, UNJF-3B | 
| Head Style | Hex | 
| Height | 0.281 | 
| Locking Element | Nylon | 
| Mil-Spec | MS21044N3 | 
| NAS Spec | NASM21044 |