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5/8-18 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.

23 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)SteelCadmium/Yellow5/8-18 x 1 x 23/325/8-18 x 1 x 23/32 castellated airframe nut b18.2.289
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PerigeeMICastle Nut (Hex)300 Stainless (A1,A2, 18-8,304,310 etc.)Passivated5/8-18 x 1 x 5/165/8-18 x 1 x 5/16 castellated shear nut b18.2.21101
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PerigeeMICastle Nut (Hex)Grade 2Zinc/Clear5/8-18 x 15/16 x 23/325/8-18 x 15/16 x 23/32 hex castle nut b18.2.2402
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PerigeeMICastle Nut (Hex)Grade 2Zinc/Clear5/8-18 x 15/16 x 23/325/8-18 x 15/16 x 23/32 hex castle nut b18.2.2129
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Buy Castellated Nuts from one of our FCH Network Members
YANKEENHCastle Nut (Hex)SteelPlain5/8-185/8-18 hex castle slotted nut plain steel27
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EndriesWICastle Nut (Hex)SteelPlain5/8-185/8-18 castle nut plain195
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EndriesWICastle Nut (Hex)SteelZinc/Clear5/8-185/8-18 castle nut zinc200
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Alma BoltMICastle Nut (Hex)Grade 5Plain5/8-18SAE castle nut2
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NutsBoltsNECastle Nut (Hex)SteelPlain5/8-185/8-18 castle nut plain55
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LibertyILCastle Nut (Hex)SteelZinc/Clear5/8-18hex castle nut20
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KomarILCastle Nut (Hex)SteelZinc/Clear5/8-185/8-18 hex castle nut (15/16x23/32) zinc trivalent45
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HBBOLTCACastle Nut (Hex)SteelZinc/Clear5/8-18castle nut86
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RapidNYCastle Nut (Hex)SteelPlain5/8-18nut plain assembled washer MS21244-10C1338
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SISAZCastle Nut (Hex)SteelPlain5/8-185/8-18 castle hex nut steel plain25
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Kanebridge ILCastle Nut (Hex)SteelZinc/Clear5/8-185/8-18 castle nut zinc3.750
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Kanebridge ILCastle Nut (Hex)Grade 5Zinc/Clear5/8-185/8-18 castle nut grade 5 zinc3.750
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OSSCORICastle Nut (Hex)SteelZinc/Clear5/8-185/8-18 castle nut plated b18.2.285
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PerigeeMICastle Nut (Hex)SteelCadmium/Yellow5/8-18 x 1 x 23/325/8-18 x 1 x 23/32 castellated airframe nut b18.2.289
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PerigeeMICastle Nut (Hex)300 Stainless (A1,A2, 18-8,304,310 etc.)Passivated5/8-18 x 1 x 5/165/8-18 x 1 x 5/16 castellated shear nut b18.2.21101
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PerigeeMICastle Nut (Hex)Grade 2Zinc/Clear5/8-18 x 15/16 x 23/325/8-18 x 15/16 x 23/32 hex castle nut b18.2.2402
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PerigeeMICastle Nut (Hex)Grade 2Zinc/Clear5/8-18 x 15/16 x 23/325/8-18 x 15/16 x 23/32 hex castle nut b18.2.2129
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PerigeeMICastle Nut (Hex)SteelZinc/Clear5/8-18 x 15/16 x ?5/8-18 x 15/16 x ? hex castle nut b18.2.2556
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SRFALCastle Nut (Hex)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/8-18castle nut s/s-
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SRFALCastle Nut (Hex)SteelZinc/Clear5/8-18castle nut-
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SRFALCastle Nut (Hex)SteelPlain5/8-18castle nut10
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WSBKYCastle Nut (Hex)Grade 5Plain5/8-18nut hex castle gr5 (pl) 5/8-18 b18.2.23,260
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All SizeTXCastle Nut (Hex)SteelPlain5/8-185/8-18 slotted castle nut b18.2.299
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