1/4-28 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.

22 results, (click on any line for more information)

Search Results Sponsored by Perigee Manufacturing, your source for Castellated Nuts. For more results, visit   perigeemfg.com
SupplierLocTypeMaterialFinishSizeDescriptionQty 
PerigeeMICastle Nut (Hex)300 Stainless (A1,A2, 18-8,304,310 etc.)Cadmium/Yellow1/4-281/4-28 x 7/16 x 9/32 hex castellated airframe nut b18.2.24533
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PerigeeMICastle Nut (Hex)SteelPhosphate1/4-28 x 7/16 x 9/321/4-28 x 7/16 x 9/32 hex castle nut b18.2.2636
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AmericanNYCastle Nut (Hex)BrassPlain1/4-28castle nut1100
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METRO INDOHCastle Nut (Hex)SteelPlain1/4-28castle nut sae1493
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Kanebridge ILCastle Nut (Hex)SteelZinc/Clear1/4-281/4-28 castle nut zinc50,000
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Kanebridge ILCastle Nut (Hex)Grade 5Zinc/Clear1/4-281/4-28 castle nut grade 5 zinc50,000
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NutsBoltsNECastle Nut (Hex)SteelPlain1/4-281/4-28 castle nut506
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ACCURATEILCastle Nut (Hex)SteelZinc/Clear1/4-28castle nuts484
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Alpine SuUTCastle Nut (Hex)SteelZinc/Clear1/4-281/4-28 castle nut zp73
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DeltaTXCastle Nut (Hex)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-28fin castle nut 18-8 sst nf 1/4-2880
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RCFastAZCastle Nut (Hex)SteelCadmium/Yellow1/4-28castle nut, 1/4-28, stl cad AN310-4125
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LibertyILCastle Nut (Hex)300 Stainless (A1,A2, 18-8,304,310 etc.)Cadmium/Yellow1/4-28an310-c4 1/4-28 castle nut ss 304ss1,600
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LibertyILCastle Nut (Hex)SteelPlain1/4-28hex castle nut100
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LibertyILCastle Nut (Hex)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-28hex castle nut 18-8 s/s 18-8 s/s1,050
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PerigeeMICastle Nut (Hex)300 Stainless (A1,A2, 18-8,304,310 etc.)Cadmium/Yellow1/4-281/4-28 x 7/16 x 9/32 hex castellated airframe nut b18.2.24533
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PerigeeMICastle Nut (Hex)SteelPhosphate1/4-28 x 7/16 x 9/321/4-28 x 7/16 x 9/32 hex castle nut b18.2.2636
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CenturyFLCastle Nut (Hex)300 Stainless (A1,A2, 18-8,304,310 etc.)Cadmium/Yellow1/4-28an310c4 castle nut10
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CenturyFLCastle Nut (Hex)SteelCadmium/Yellow1/4-28an310-4 castle nut203
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AbabaCACastle Nut (Hex)SteelZinc/Clear1/4-281/4-28 castle nut stl znc b18.2.2318
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AIHAZCastle Nut (Hex)SteelCadmium/Yellow1/4-28nut aluminum AN320-4291
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AIHAZCastle Nut (Hex)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-281/4-28-3b nut s/s pass 304ss AN320C470
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HBBOLTCACastle Nut (Hex)SteelZinc/Clear1/4-28castle nut300
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HBBOLTCACastle Nut (Hex)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-28castle nut 18-8 ss68
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Alma BoltMICastle Nut (Hex)SteelPlain1/4-28SAE castle nut750
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