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3/8 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.

33 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/Yellow3/8-243/8-24 x 9/16 x 13/32 hex castellated airframe nut b18.2.2363
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PerigeeMICastle Nut (Hex)300 Stainless (A1,A2, 18-8,304,310 etc.)Cadmium/Yellow3/8-243/8-24 x 9/16 x 13/32 hex castellated airframe nut b18.2.2971
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PerigeeMICastle Nut (Hex)SteelCadmium3/8-24 x 9/16 x 13/323/8-24 x 9/16 x 13/32 hex castle nut b18.2.2331
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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.)Plain3/8-163/8-16 castle nut 18-8 ss23
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JacksonMSCastle Nut (Hex)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16hex castle nut 18-8 30414
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OBRIENOHCastle Nut (Hex)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16hex castle nut 18-8 30410
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Kanebridge ILCastle Nut (Hex)SteelZinc/Clear3/8-163/8-16 castle nut zinc5,000
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LibertyILCastle Nut (Hex)SteelZinc/Clear3/8-16castle nut plate780
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HBBOLTCACastle Nut (Hex)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16castle nut 18-8 ss205
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HayesCACastle Nut (Hex)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-163/8-16 castle nut 18-8ss16
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Fastener OHCastle Nut (Hex)SteelPlain3/8-16castle nut 3/8-16 304 40
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CNBILCastle Nut (Hex)SteelCadmium3/8-24castle nut c1018 material per drawing # grd-24612 per qq-p-416 3 type-119
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METRO INDOHCastle Nut (Hex)SteelPlain3/8-24castle nut sae171
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CenturyFLCastle Nut (Hex)SteelPlain3/8-243/8-24 castle nut (STEEL BLACK OXIDE) (STEEL BLACK OXIDE) 856
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BAYFASTCOFLCastle Nut (Hex)SteelZinc/Clear3/8-24castle nut148
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MFSKSCastle Nut (Hex)SteelZinc/Yellow3/8-24castle nut68
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NutsBoltsNECastle Nut (Hex)SteelPlain3/8-243/8-24 castle nut7
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DeltaTXCastle Nut (Hex)SteelZinc/Clear3/8-24fin castle nut steel zinc nf 3/8-24 (FINE THREAD)143
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DeltaTXCastle Nut (Hex)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-24fin castle nut 18-8 sst nf 3/8-24 (FINE THREAD)53
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DeltaTXCastle Nut (Hex)Superalloy (Inconel, Hastelloy, Alloy 20)Plain3/8-24fab castle nut 17-4ph 3/8-24 (PER PRINT)1074
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MFSKSCastle Nut (Hex)SteelZinc/Clear3/8-24castle nut224
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QFCTXCastle Nut (Hex)SteelCadmium/Yellow3/8-243/8-24 thin castle nut cad plated b18.2.22
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WSBKYCastle Nut (Hex)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-24nut hex castle (18-8) 3/8-24 b18.2.2428
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WSBKYCastle Nut (Hex)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-24nut hex castle (18-8) 3/8-24 b18.2.2274
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Kanebridge ILCastle Nut (Hex)SteelZinc/Clear3/8-243/8-24 castle nut zinc5,000
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HBBOLTCACastle Nut (Hex)SteelZinc/Clear3/8-24castle nut184
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HBBOLTCACastle Nut (Hex)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-24castle nut 18-8 ss5
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Kanebridge ILCastle Nut (Hex)Grade 5Zinc/Clear3/8-243/8-24 castle nut grade 5 zinc5,000
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PerigeeMICastle Nut (Hex)300 Stainless (A1,A2, 18-8,304,310 etc.)Cadmium/Yellow3/8-243/8-24 x 9/16 x 13/32 hex castellated airframe nut b18.2.2363
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PerigeeMICastle Nut (Hex)300 Stainless (A1,A2, 18-8,304,310 etc.)Cadmium/Yellow3/8-243/8-24 x 9/16 x 13/32 hex castellated airframe nut b18.2.2971
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PerigeeMICastle Nut (Hex)SteelCadmium3/8-24 x 9/16 x 13/323/8-24 x 9/16 x 13/32 hex castle nut b18.2.2331
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HayesCACastle Nut (Hex)SteelPlain3/8-243/8-24 castle nut pln200
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WDMBIACastle Nut (Hex)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-24nut hex castle (18 8) 3/8-24 spc (W030) (W030)550
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Bostwick INCastle Nut (Hex)Grade 5Plain3/8-243/8-24 castle nut gr 5 b18.2.249
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CenturyNYCastle Nut (Hex)SteelBlack Oxide3/8-24 castle nut steel black oxide856
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CenturyFLCastle Nut (Hex)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-24an320c6 6
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