- 5/8‑18 UNF castellated shear nut for 5/8‑inch bolts in shear‑only applications
- Carbon steel, cadmium plated per QQ‑P‑416 Type II Class 3 for corrosion resistance
- Reduced‑height castle nut designed for use with clevis bolts or taper pins and locked with a cotter pin
| Type | Nut |
| Style | Shear Castellated Hexagon |
| Size | 5/8" |
| Material | Carbon Steel |
| Max Temp. | Not Rated |
| Thread Style | UNF, 5/8‑18, right‑hand |
| Head Style | Plain castellated hexagon |
| Height | 0.33" |
| Locking Element | Secured with Cotter Pin |
| Mil-Spec | AN320-10 |
