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 39/649/16-18 x 7/8 x 39/64 castellated airframe nut b18.2.214
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PerigeeMICastle Nut (Hex)SteelCadmium/Yellow9/16-189/16-18 x 7/8 x 5/16 castellated hex shear nut b18.2.25
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PerigeeMICastle Nut (Hex)SteelCadmium/Yellow9/16-189/16-18 x 7/8 x 5/16 castellated hex shear nut b18.2.214
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PerigeeMICastle Nut (Hex)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain9/16-189/16-18 x 7/8 x 5/16 castellated hex shear nut b18.2.2436
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MAINSOURCNHCastle Nut (Hex)300 Stainless (A1,A2, 18-8,304,310 etc.)Passivated9/16-18 x 7/8 x 39/64an310c9 (9/16-18 unf 3b castle nut ss)6
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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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AmericanNYCastle Nut (Hex)SteelPlain9/16-18castle nut100
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AmericanNYCastle Nut (Hex)BrassPlain9/16-18castle nut400
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NutsBoltsNECastle Nut (Hex)SteelZinc/Clear9/16-189/16-18 castle nut zp10
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OSSCORICastle Nut (Hex)SteelZinc/Clear9/16-189/16-18 castle nut plated b18.2.2366
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DeltaTXCastle Nut (Hex)SteelZinc/Clear9/16-18fin castle nut steel zinc nf 9/16-18306
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PerigeeMICastle Nut (Hex)300 Stainless (A1,A2, 18-8,304,310 etc.)Passivated9/16-18 x 7/8 x 39/649/16-18 x 7/8 x 39/64 castellated airframe nut b18.2.214
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PerigeeMICastle Nut (Hex)SteelCadmium/Yellow9/16-189/16-18 x 7/8 x 5/16 castellated hex shear nut b18.2.25
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PerigeeMICastle Nut (Hex)SteelCadmium/Yellow9/16-189/16-18 x 7/8 x 5/16 castellated hex shear nut b18.2.214
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PerigeeMICastle Nut (Hex)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain9/16-189/16-18 x 7/8 x 5/16 castellated hex shear nut b18.2.2436
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PerigeeMICastle Nut (Hex)SteelCadmium/Yellow9/16-189/16-18 x 7/8 x 5/16 castellated hex shear nut b18.2.22261
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PerigeeMICastle Nut (Hex)SteelCadmium/Yellow9/16-189/16-18 x 7/8 x 5/16 castellated hex shear nut b18.2.26267
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PerigeeMICastle Nut (Hex)SteelCadmium9/16-18 x 7/8 x 5/169/16-18 x 7/8 x 5/16 castellated hex shear nut b18.2.22263
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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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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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