A castle nut, also known as a castellated nut, is a type of nut commonly used in mechanical applications. It is characterized by the notches or slots present on one end, which resemble the serrated tops of castle parapets, thus giving it the name "castle nut". The accompanying bolt typically has one or two holes, allowing the nut to be locked securely in place.
Castle nuts are positive locking devices. They require the use of a fastener to ensure that the nut remains affixed even in the presence of vibrations or torque that may occur during operation. Common fasteners used with castle nuts include wire, cotter pins, and in some cases, an additional nut. The wire or cotter pin is threaded through the nut and the attached bolt and then secured in place, preventing the nut from loosening. Using an additional nut is less effective than the other two methods but can be used as a substitute when other fasteners are unavailable.
These nuts are widely used in various fields. In the automotive industry, they are often used to hold wheel bearings in place. They are also commonly seen in machinery and mechanical equipment, especially in applications where vibration is prevalent, such as in engines, trailers, and construction machinery. In these cases, castle nuts play a crucial role in maintaining the integrity and safety of the mechanical systems by preventing the nuts from loosening over time. CASTLE NUT, SLOTTED NUT
1,Standard: DIN,ASME,Open to customized
2,Thread: UNC,UNF
3,Material: Stainless Steel / Carbon Steel ,low carbon steel(mild steel), middle carbon steel, alloy steel, stainless steel (SS201, SS304, SS316),and brass, aluminium alloy.
4,SAE Class: 2,5.8 ASTM A194 2H. Metric from 4 to 10
5,Metric Size: M5 M6 M8 M10 M12 M14 M16 M18 M20 M22 M24 M27 M30 M33
Inch size: 1/4”,3/8”,1/2”,5/8”,3/4”,7/8”,1”,1-1/4”,1-1/2”,2”,2-1/4”
6,Surface finish: Plain finish,Black ,Black Oxide, Black Zinc Coating,Hot Dip Galvanized(HDG), Zinc Plated, Yellow ZP,Brass coating, Nickle plated , Chrome plating, Dacromat, Geomet, etc.
7,Packing: 20-25kg Carton+Pallet (bulk packing OR small box packing)
