9/16-18 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.

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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)300 Stainless (A1,A2, 18-8,304,310 etc.)Passivated9/16-18 x 7/8 x 39/64castellated airframe nut an310c9 b18.2.214
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PerigeeMICastle Nut (Hex)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain9/16-18castellated hex shear nut an320c9 b18.2.2436
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PerigeeMICastle Nut (Hex)SteelCadmium/Yellow9/16-18castellated hex shear nut an320-9 b18.2.25
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PerigeeMICastle Nut (Hex)SteelCadmium/Yellow9/16-18castellated hex shear nut an320-9 b18.2.214
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Buy Castellated Nuts from one of our FCH Network Members
NutsBoltsNECastle Nut (Hex)SteelZinc/Clear9/16-189/16-18 castle nut zp10
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AmericanNYCastle Nut (Hex)SteelPlain9/16-18castle nut100
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AmericanNYCastle Nut (Hex)BrassPlain9/16-18castle nut400
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PerigeeMICastle Nut (Hex)300 Stainless (A1,A2, 18-8,304,310 etc.)Passivated9/16-18 x 7/8 x 39/64castellated airframe nut an310c9 b18.2.214
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PerigeeMICastle Nut (Hex)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain9/16-18castellated hex shear nut an320c9 b18.2.2436
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PerigeeMICastle Nut (Hex)SteelCadmium/Yellow9/16-18castellated hex shear nut an320-9 b18.2.25
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PerigeeMICastle Nut (Hex)SteelCadmium/Yellow9/16-18castellated hex shear nut an320-9 b18.2.214
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PerigeeMICastle Nut (Hex)SteelCadmium/Yellow9/16-18castellated hex shear nut an320-9 b18.2.22261
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PerigeeMICastle Nut (Hex)SteelCadmium/Yellow9/16-18castellated hex shear nut an320-9 b18.2.26267
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DeltaTXCastle Nut (Hex)SteelZinc/Clear9/16-18fin castle nut steel zinc nf 9/16-18306
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AIHAZCastle Nut (Hex)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain9/16-18nut 304ss AN320C93
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MFSKSCastle Nut (Hex)SteelZinc/Yellow9/16-18castle nut41
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Kanebridge ILCastle Nut (Hex)SteelZinc/Clear9/16-189/16-18 castle nut zinc5,000
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Kanebridge ILCastle Nut (Hex)Grade 5Zinc/Clear9/16-189/16-18 castle nut grade 5 zinc5,000
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TimberlineCOCastle Nut (Hex)SteelPlain9/16-18hx cstl nut pkg 9/16-1825
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TimberlineCOCastle Nut (Hex)SteelPlain9/16-18hx cstl nut 9/16-1824
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