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Castle Nuts

Castle nuts are hexagonal nuts with slots cut into one end, designed to be secured with a cotter pin to prevent loosening, commonly used in automotive and machinery applications.

27 products

1/4"-20 Steel Slotted Hex Nuts Plain & OilSold out

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1/4"-20 Steel Slotted Hex Nuts Plain & Oil

$0.27

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1/4"-20 Slotted Finished Hex Nuts Zinc ClearSold out

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1/4"-20 Slotted Finished Hex Nuts Zinc Clear

$0.28

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5/16"-18 Steel Slotted Hex Nuts Plain & OilSold out

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5/16"-18 Steel Slotted Hex Nuts Plain & Oil

$0.34

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1/4"-28 Slotted Finished Hex Nuts Zinc ClearSold out

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1/4"-28 Slotted Finished Hex Nuts Zinc Clear

$0.28

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5/16"-18 Slotted Finished Hex Nuts Zinc ClearSold out

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5/16"-18 Slotted Finished Hex Nuts Zinc Clear

$0.35

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5/16"-24 Slotted Finished Hex Nuts Zinc ClearSold out

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5/16"-24 Slotted Finished Hex Nuts Zinc Clear

$0.35

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3/8"-16 Steel Slotted Hex Nuts Plain & OilSold out

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3/8"-16 Steel Slotted Hex Nuts Plain & Oil

$0.43

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3/8"-16 Slotted Finished Hex Nuts Zinc ClearSold out

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3/8"-16 Slotted Finished Hex Nuts Zinc Clear

$0.45

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7/16"-14 Steel Slotted Hex Nuts Plain & OilSold out

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7/16"-14 Steel Slotted Hex Nuts Plain & Oil

$0.66

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3/8"-24 Slotted Finished Hex Nuts Zinc ClearSold out

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3/8"-24 Slotted Finished Hex Nuts Zinc Clear

$0.45

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3/8"-24 Steel Slotted Hex Nuts Plain & OilSold out

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3/8"-24 Steel Slotted Hex Nuts Plain & Oil

$0.43

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7/16"-14 Slotted Finished Hex Nuts Zinc ClearSold out

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7/16"-14 Slotted Finished Hex Nuts Zinc Clear

$0.69

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7/16"-20 Steel Slotted Hex Nuts Plain & OilSold out

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7/16"-20 Steel Slotted Hex Nuts Plain & Oil

$0.67

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7/16"-20 Slotted Finished Hex Nuts Zinc ClearSold out

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7/16"-20 Slotted Finished Hex Nuts Zinc Clear

$0.70

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1/2"-13 Steel Slotted Hex Nuts Plain & OilSold out

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1/2"-13 Steel Slotted Hex Nuts Plain & Oil

$0.84

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1/2"-13 Slotted Finished Hex Nuts Zinc ClearSold out

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1/2"-13 Slotted Finished Hex Nuts Zinc Clear

$0.88

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1/2"-20 Steel Slotted Hex Nuts Plain & OilSold out

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1/2"-20 Steel Slotted Hex Nuts Plain & Oil

$0.85

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5/8"-11 Steel Slotted Hex Nuts Plain & OilSold out

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5/8"-11 Steel Slotted Hex Nuts Plain & Oil

$1.25

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1/2"-20 Slotted Finished Hex Nuts Zinc ClearSold out

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1/2"-20 Slotted Finished Hex Nuts Zinc Clear

$0.89

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5/8"-11 Slotted Finished Hex Nuts Zinc ClearSold out

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5/8"-11 Slotted Finished Hex Nuts Zinc Clear

$1.36

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5/8"-18 Slotted Finished Hex Nuts Zinc ClearSold out

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5/8"-18 Slotted Finished Hex Nuts Zinc Clear

$1.38

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5/8"-18 Steel Slotted Hex Nuts Plain & OilSold out

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5/8"-18 Steel Slotted Hex Nuts Plain & Oil

$1.35

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3/4"-16 Steel Slotted Hex Nuts Plain & OilSold out

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3/4"-16 Steel Slotted Hex Nuts Plain & Oil

$2.09

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7/8"-14 Steel Slotted Hex Nuts Plain & OilSold out

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7/8"-14 Steel Slotted Hex Nuts Plain & Oil

$3.75

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