View Cart
Castle Nuts, Plain (Inch)
Castle Nuts, Plain Finish, are precision-engineered locking fasteners designed for use with drilled bolts and cotter pins to create secure, vibration-resistant connections. Featuring a slotted crown resembling a castle turret, these nuts allow a cotter pin to pass through the nut and bolt for positive mechanical locking. The plain (uncoated) finish ensures excellent weldability and consistent torque performance, making them ideal for indoor or controlled environments where corrosion protection is not a primary concern.
Plain Castle Nuts are commonly used in automotive, agricultural, and machinery applications where safety and reliability are critical. The castellated design provides a strong locking mechanism when paired with a cotter pin, preventing rotation or loosening under vibration and dynamic loads. Their uncoated steel construction offers a smooth surface suitable for post-assembly coatings, plating, or painting. These nuts provide dependable fastening performance and mechanical security for applications requiring precise alignment and frequent adjustments.
