5/8-11 Castellated Nuts

Hex Castle Nuts or Castellated Nuts have notches on one end, which resemble the serrated tops of castle parapets. These nuts are used with a bolt with cross-drilled holes, so that a cotter pin can pass through the nut and into a hole in a bolt shank, thus preventing the nut from loosening. The notched end is turned down slightly, allowing the cotter pin to be bent around the nut. Often used in machinery, shafts and automotive applications.

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Search Results Sponsored by Perigee Manufacturing, your source for Castellated Nuts. For more results, visit   perigeemfg.com
SupplierLocTypeMaterialFinishSizeDescriptionQty 
PerigeeMICastle Nut (Hex)SteelCadmium5/8-11 x 15/16 x 23/325/8-11 x 15/16 x 23/32 castle nut b18.2.2135
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PerigeeMICastle Nut (Hex)400 Stainless (405, 410,416,420,430 etc.)Passivated5/8-11 x 15/16 x 23/325/8-11 x 15/16 x 23/32 hex castle nut b18.2.2302
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SunPackFLCastle Nut (Hex)SteelZinc/Clear5/8-115/8-11 castle lock nut zinc10
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Kanebridge ILCastle Nut (Hex)SteelZinc/Clear5/8-115/8-11 castle nut zinc3.750
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YANKEENHCastle Nut (Hex)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/8-115/8-11 hex castle slotted nut 18-8 stainless steel5
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Fastener OHCastle Nut (Hex)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/8-11hex castle nut 5/8-11 18.84
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LibertyILCastle Nut (Hex)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/8-11hex castle nut 18-8 s/s 18-8 s/s4
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PerigeeMICastle Nut (Hex)SteelCadmium5/8-11 x 15/16 x 23/325/8-11 x 15/16 x 23/32 castle nut b18.2.2135
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PerigeeMICastle Nut (Hex)400 Stainless (405, 410,416,420,430 etc.)Passivated5/8-11 x 15/16 x 23/325/8-11 x 15/16 x 23/32 hex castle nut b18.2.2302
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SRFALCastle Nut (Hex)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/8-11castle nut s/s-
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HBBOLTCACastle Nut (Hex)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/8-11castle nut 18-85
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OBRIENOHCastle Nut (Hex)SteelZinc/Clear5/8-11hex castle nut138
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