Vibrations from heavy snow scraping loosen standard fasteners quickly. Therefore, installing the Western 91338 Hex Locknut guarantees complete structural security on critical plow frame joints. Specifically, the top-ring mechanical locking feature deforms slightly around bolt threads to provide exceptional resistance to backing off. Consequently, fleet operators avoid dangerous hardware failures during continuous winter storm deployments.
Furthermore, the heat-treated steel construction tolerates high torque specifications without stripping. Because loose structural connections accelerate moldboard damage, this specialized fastener maintains precise frame alignment under extreme shear loads. Additionally, the corrosion-resistant coating withstands constant exposure to road salt spray. Thus, mechanics preserve fleet integrity and reduce roadside emergency maintenance hours throughout grueling winter seasons.
Benefits of the 91338 HEXLOCKNUT_3/4-10 GB TOPRING
-
Prevents fastener backing off by utilizing a mechanical top-ring locking distortion that grips mating threads tightly.
-
Withstands extreme structural shear forces and heavy impact loads during commercial snow containment operations.
-
Resists stripping under high torque loads due to the hardened Grade B steel manufacturing standard.
-
Defends against corrosive road salt and moisture degradation through a protective specialized zinc plating layer.
-
Secures large-diameter pivot bolts and structural frame pins across diverse Western UltraMount plow setups.
Additional Info and Common Related Parts
| Part Number | Item Name | Technical Role |
| 90159 | 90159 Hex Cap Screw | Mates with the 3/4-10 locknut to clamp high-stress structural plow joints securely. |
| 91337 | 91337 Hex Locknut | Provides a complementary smaller diameter top-ring locking mechanism for secondary structural linkages. |
| 67855 | 67855 Pivot Bolt | Acts as the main rotational axis for the pivot bar mechanism on UltraMount plow systems. |
Always refer to your Western Plow’s documentation and vehicle-specific installation instructions to confirm compatibility and proper installation procedures.



Very fast and on the ball thank you
5
.
Correct parts