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.

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

From $20.58
From $20.58
1/4"-20 Slotted Finished Hex Nuts Zinc Clear
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1/4"-20 Slotted Finished Hex Nuts Zinc Clear

From $14.07
From $14.07
5/16"-18 Steel Slotted Hex Nuts Plain & Oil
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5/16"-18 Steel Slotted Hex Nuts Plain & Oil

From $17.00
From $17.00
1/4"-28 Slotted Finished Hex Nuts Zinc Clear
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1/4"-28 Slotted Finished Hex Nuts Zinc Clear

From $14.19
From $14.19
5/16"-18 Slotted Finished Hex Nuts Zinc Clear
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5/16"-18 Slotted Finished Hex Nuts Zinc Clear

From $17.55
From $17.55
5/16"-24 Slotted Finished Hex Nuts Zinc Clear
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5/16"-24 Slotted Finished Hex Nuts Zinc Clear

From $17.74
From $17.74
3/8"-16 Steel Slotted Hex Nuts Plain & Oil
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3/8"-16 Steel Slotted Hex Nuts Plain & Oil

From $15.02
From $15.02
3/8"-16 Slotted Finished Hex Nuts Zinc Clear
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3/8"-16 Slotted Finished Hex Nuts Zinc Clear

From $22.25
From $22.25
7/16"-14 Steel Slotted Hex Nuts Plain & Oil
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7/16"-14 Steel Slotted Hex Nuts Plain & Oil

From $16.55
From $16.55
3/8"-24 Slotted Finished Hex Nuts Zinc Clear
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3/8"-24 Slotted Finished Hex Nuts Zinc Clear

From $22.54
From $22.54
3/8"-24 Steel Slotted Hex Nuts Plain & Oil
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3/8"-24 Steel Slotted Hex Nuts Plain & Oil

From $15.19
From $15.19
7/16"-14 Slotted Finished Hex Nuts Zinc Clear
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7/16"-14 Slotted Finished Hex Nuts Zinc Clear

From $17.24
From $17.24
7/16"-20 Steel Slotted Hex Nuts Plain & Oil
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7/16"-20 Steel Slotted Hex Nuts Plain & Oil

From $16.78
From $16.78
7/16"-20 Slotted Finished Hex Nuts Zinc Clear
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7/16"-20 Slotted Finished Hex Nuts Zinc Clear

From $17.48
From $17.48
1/2"-13 Steel Slotted Hex Nuts Plain & Oil
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1/2"-13 Steel Slotted Hex Nuts Plain & Oil

From $12.60
From $12.60
1/2"-13 Slotted Finished Hex Nuts Zinc Clear
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1/2"-13 Slotted Finished Hex Nuts Zinc Clear

From $21.95
From $21.95
1/2"-20 Steel Slotted Hex Nuts Plain & Oil
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1/2"-20 Steel Slotted Hex Nuts Plain & Oil

From $12.79
From $12.79
5/8"-11 Steel Slotted Hex Nuts Plain & Oil
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5/8"-11 Steel Slotted Hex Nuts Plain & Oil

From $12.48
From $12.48
1/2"-20 Slotted Finished Hex Nuts Zinc Clear
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1/2"-20 Slotted Finished Hex Nuts Zinc Clear

From $22.27
From $22.27
5/8"-11 Slotted Finished Hex Nuts Zinc Clear
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5/8"-11 Slotted Finished Hex Nuts Zinc Clear

From $13.60
From $13.60
5/8"-18 Slotted Finished Hex Nuts Zinc Clear
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5/8"-18 Slotted Finished Hex Nuts Zinc Clear

From $13.82
From $13.82
5/8"-18 Steel Slotted Hex Nuts Plain & Oil
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5/8"-18 Steel Slotted Hex Nuts Plain & Oil

From $13.54
From $13.54
3/4"-16 Steel Slotted Hex Nuts Plain & Oil
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3/4"-16 Steel Slotted Hex Nuts Plain & Oil

From $10.44
From $10.44
7/8"-14 Steel Slotted Hex Nuts Plain & Oil
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7/8"-14 Steel Slotted Hex Nuts Plain & Oil

From $7.50
From $7.50
1"-8 Steel Slotted Hex Nuts Plain & Oil
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1"-8 Steel Slotted Hex Nuts Plain & Oil

From $9.58
From $9.58
1"-14 Steel Slotted Hex Nuts Plain & Oil
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1"-14 Steel Slotted Hex Nuts Plain & Oil

From $9.62
From $9.62
1"-8 Slotted Finished Hex Nuts Zinc Clear
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1"-8 Slotted Finished Hex Nuts Zinc Clear

From $15.14
From $15.14