Castle Nuts 304 Stainless Steel

Castle Nuts 304 Stainless Steel Product Video

Stainless Steel Castle Nuts

Slotted Nuts, also called Castellated Nuts, in 304 Stainless Steel


  • Used with a cotter pin
  • Notched on one side
  • Torque the nut then aligns with the closest hole
  • Used with a bolt or axle that has a hole in it

A Castle nut, castellated nut, or slotted nut is normally used with a Cotter Pin to create a locking fastener assembly that cannot be loosened due to accidental vibration. It is common to see this type of nut on vehicles and machinery where vibration is frequent.


Nut Sizes Width Across Flats Overall Height
#10 0.375" REF 0.248" REF
1/4" 0.434" REF 0.281" REF
5/16" 0.499" REF 0.326" REF
3/8" 0.562" REF 0.410" REF
7/16" 0.686" REF 0.456" REF
1/2" 0.745" REF 0.569" REF
5/8" 0.934" REF 0.724" REF
3/4" 1.125" REF 0.820" REF
7/8" 1.126" REF 0.814" REF
1" 1.498" REF 1.005" REF
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Product Specifications
Color
Silver
Corrosion Resistant
Yes
Drive Style
External Hex
Grade
304
Material
Stainless Steel
Product Type
Castle Nut
System of Measurement (Unit)
Inch
Thread Direction
Right Hand
Tolerance (IFI)
Actual measurements may vary slightly +/- depending on production run within IFI Tolerances

Product Video

Castle Nuts 304 Stainless Steel Product Video