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1/4 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.

34 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)Grade ACadmium1/4-20 x 7/16 x 9/321/4-20 x 7/16 x 9/32 hex castle nut b18.2.293
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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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Buy Castellated Nuts from one of our FCH Network Members
WeaverWACastle Nut (Hex)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-201/4-20 castle nut 18-8 ss23
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LibertyILCastle Nut (Hex)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-20hex castle nut 18-8 s/s 18-8 s/s25
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HBBOLTCACastle Nut (Hex)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-20castle nuts 18-8ss135
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PerigeeMICastle Nut (Hex)Grade ACadmium1/4-20 x 7/16 x 9/321/4-20 x 7/16 x 9/32 hex castle nut b18.2.293
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HayesCACastle Nut (Hex)BrassPlain1/4-201/4-20 castle nut brass80
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OlanderCACastle Nut (Hex)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-20 hx castle nut sst rohs541
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Fastener OHCastle Nut (Hex)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-20hex castle nut 1/4-20 18.8 50
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AbabaCACastle Nut (Hex)SteelZinc/Clear1/4-281/4-28 castle nut stl znc b18.2.2318
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WeaverWACastle Nut (Hex)SteelZinc/Clear1/4-281/4-28 castle nut zinc197
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RCFastAZCastle Nut (Hex)SteelCadmium/Yellow1/4-28castle nut, 1/4-28, stl cad AN310-4125
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METRO INDOHCastle Nut (Hex)SteelPlain1/4-28castle nut sae1493
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ACCURATEILCastle Nut (Hex)SteelZinc/Clear1/4-28castle nuts484
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CenturyFLCastle Nut (Hex)300 Stainless (A1,A2, 18-8,304,310 etc.)Cadmium/Yellow1/4-28an310c4 castle nut 17
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AmericanNYCastle Nut (Hex)BrassPlain1/4-28castle nut1100
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NutsBoltsNECastle Nut (Hex)SteelPlain1/4-281/4-28 castle nut506
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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 1/4-28 (FINE THREAD)80
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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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Alma BoltMICastle Nut (Hex)SteelPlain1/4-28SAE castle nut750
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Kanebridge ILCastle Nut (Hex)SteelZinc/Clear1/4-281/4-28 castle nut zinc50,000
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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 304ss3,100
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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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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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Kanebridge ILCastle Nut (Hex)Grade 5Zinc/Clear1/4-281/4-28 castle nut grade 5 zinc50,000
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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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CenturyNYCastle Nut (Hex)SteelCadmium/Yellowan320-4 castle nut steel nut-castle45
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CenturyNYCastle Nut (Hex)300 Stainless (A1,A2, 18-8,304,310 etc.)Plainms21225-4 nut self locking hex hd160
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CenturyFLCastle Nut (Hex)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-28ms21225-4 nut self locking hex hd 260
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CenturyNYCastle Nut (Hex)SteelCadmium/Yellowan310-4 castle nut273
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CenturyFLCastle Nut (Hex)SteelCadmium/Yellow1/4-28an310-4 castle nut 273
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CenturyFLCastle Nut (Hex)SteelCadmium/Yellow1/4-28an320-4 castle nut steel nut-castle 45
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