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5/16 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.
45 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 | ||||||||
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| Supplier | Loc | Type | Material | Finish | Size | Description | Qty | |
| Perigee | MI | Castle Nut (Hex) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Cadmium/Yellow | 5/16-24 | 5/16-24 x 1/2 x 21/64 hex castellated airframe nut b18.2.2 | 1095 |
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| Perigee | MI | Castle Nut (Hex) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Cadmium/Yellow | 5/16-24 | 5/16-24 x 1/2 x 21/64 hex castellated airframe nut b18.2.2 | 4863 |
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| Perigee | MI | Castle Nut (Hex) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-24 | 5/16-24 x 1/2 x 3/16 hex castellated shear nut b18.2.2 | 2960 |
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| Perigee | MI | Castle Nut (Hex) | Grade A | Plain | 5/16-18 x 1/2 x 21/64 | 5/16-18 x 1/2 x 21/64 hex castle nut b18.2.2 | 48 |
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| Buy Castellated Nuts from one of our FCH Network Members | ||||||||
| Century | FL | Castle Nut (Hex) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Cadmium/Yellow | 5/16-24 | an310c5 nut | 9 |
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| Century | FL | Castle Nut (Hex) | Steel | Cadmium/Yellow | 5/16-24 | an320-5 nut q2c | 5 |
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| Century | FL | Castle Nut (Hex) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-24 | an320c5 nut cstl shear | 26 |
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| Century | FL | Castle Nut (Hex) | Steel | Cadmium/Yellow | 5/16-24 | an310-5 castle nut | 5 |
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| Weaver | WA | Castle Nut (Hex) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 | 5/16-18 castle nut 18-8 ss | 30 |
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| METRO IND | OH | Castle Nut (Hex) | Steel | Plain | 5/16-24 | castle nut sae | 75 |
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| Hayes | CA | Castle Nut (Hex) | Brass | Plain | 5/16-18 | 5/16-18 castle nut brass | 58 |
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| Hayes | CA | Castle Nut (Hex) | Steel | Zinc/Clear | 5/16-24 | 5/16-24 castle nut zinc | 75 |
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| Hayes | CA | Castle Nut (Hex) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 | 5/16-18 castle nut 18-8ss | 22 |
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| YANKEE | NH | Castle Nut (Hex) | Steel | Zinc/Clear | 5/16-24 | 5/16-24 hex castle slotted nut zinc pltd | 34 |
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| SWACO | OH | Castle Nut (Hex) | Plain | 5/16-24 | castellated nut _x000d_thread 5/16-24 self locking hexagon non metallic insert locknut-castellated ms17825 series nut | 9 |
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| AIH | AZ | Castle Nut (Hex) | Steel | Cadmium | 5/16-24 | 5/16-24 nylon insert castle lock nut steel cad | 12 |
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| AIH | AZ | Castle Nut (Hex) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-24 | 5/16-24 unf 3a nut s/s 304ss AN310C5 | 12 |
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| CNB | IL | Castle Nut (Hex) | Steel | Zinc/Clear | 5/16-24 | 5/16-24 castle nut zinc plated | 1371 |
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| NAPPCO | TX | Castle Nut (Hex) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-24 | hex castle nut s/s 18-8 5/16-24 | 115 |
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| ACCURATE | IL | Castle Nut (Hex) | Steel | Plain | 5/16-24 | castle nuts | 63 |
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| NutsBolts | NE | Castle Nut (Hex) | Steel | Plain | 5/16-24 | 5/16-24 castle nut | 165 |
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| Liberty | IL | Castle Nut (Hex) | Steel | Zinc/Clear | 5/16-24 | hex castle nut | 970 |
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| Raw Produ | NJ | Castle Nut (Hex) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 | castle nuts 304 ss 5/16-18 | 207 |
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| Raw Produ | NJ | Castle Nut (Hex) | Brass | Plain | 5/16-18 | castle nuts brass 5/16-18 | 73 |
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| Raw Produ | NJ | Castle Nut (Hex) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-24 | castle nuts 304 ss 5/16-24 | 24 |
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| Fastener | OH | Castle Nut (Hex) | Steel | Plain | 5/16-18 x 1.8 | castle nut 5/16-18 1.8 | 50 |
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| Weaver | WA | Castle Nut (Hex) | Steel | Zinc/Clear | 5/16-24 | 5/16-24 castle nut zinc | 140 |
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| MidStates | MI | Castle Nut (Hex) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-18 | castle nut 18-8 | 50 |
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| Northern | MN | Castle Nut (Hex) | Grade 5 | Plain | 5/16-24 | s/o 5/16-24 nf gr5 castle nut plain pkg | 65 |
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| Northern | MN | Castle Nut (Hex) | Grade 5 | Zinc/Clear | 5/16-24 | nf gr5 castle nut pkg | 48 |
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| HBBOLT | CA | Castle Nut (Hex) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-24 | castle nut 18-8 | 113 |
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| Delta | TX | Castle Nut (Hex) | Steel | Zinc/Clear | 5/16-24 | fin castle nut steel zinc nf 5/16-24 (FINE THREAD) | 3084 |
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| Delta | TX | Castle Nut (Hex) | Steel | Zinc/Clear | 5/16-18 | fin castle nut steel zinc 5/16-18 | 100 |
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| Cascade | OR | Castle Nut (Hex) | Steel | Plain | 5/16-24 | castle s b18.2.2 | 2100 |
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| SIS | AZ | Castle Nut (Hex) | Steel | Cadmium/Yellow | 5/16-24 | castle nut low-height steel cad ii plated AN320-5 | 200 |
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| Kanebridge | IL | Castle Nut (Hex) | Steel | Zinc/Clear | 5/16-24 | 5/16-24 castle nut zinc | 7.500 |
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| Kanebridge | IL | Castle Nut (Hex) | Steel | Zinc/Clear | 5/16-18 | 5/16-18 castle nut zinc | 7.500 |
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| Kanebridge | IL | Castle Nut (Hex) | Grade 5 | Zinc/Clear | 5/16-24 | 5/16-24 castle nut grade 5 zinc | 7.500 |
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| OSSCO | RI | Castle Nut (Hex) | Steel | Plain | 5/16-24 | 5/16-24 castle nut b18.2.2 | 95 |
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| OSSCO | RI | Castle Nut (Hex) | Steel | Zinc/Clear | 5/16-24 | 5/16-24 castle nut plated b18.2.2 | 3 |
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| Perigee | MI | Castle Nut (Hex) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Cadmium/Yellow | 5/16-24 | 5/16-24 x 1/2 x 21/64 hex castellated airframe nut b18.2.2 | 1095 |
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| Perigee | MI | Castle Nut (Hex) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Cadmium/Yellow | 5/16-24 | 5/16-24 x 1/2 x 21/64 hex castellated airframe nut b18.2.2 | 4863 |
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| Perigee | MI | Castle Nut (Hex) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16-24 | 5/16-24 x 1/2 x 3/16 hex castellated shear nut b18.2.2 | 2960 |
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| Perigee | MI | Castle Nut (Hex) | Grade A | Plain | 5/16-18 x 1/2 x 21/64 | 5/16-18 x 1/2 x 21/64 hex castle nut b18.2.2 | 48 |
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| Perigee | MI | Castle Nut (Hex) | 400 Stainless (405, 410,416,420,430 etc.) | Passivated | 5/16-24 x 1/2 x 21/64 | 5/16-24 x 1/2 x 21/64 hex castle nut b18.2.2 | 298 |
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| THRDFAST | FL | Castle Nut (Hex) | Steel | Plain | 5/16 | nf-24 castle nut b18.2.2 | 86 |
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| All Size | TX | Castle Nut (Hex) | Steel | Plain | 5/16-18 | 5/16-18 slotted castle nut plain b18.2.2 | 4,690 |
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| All Size | TX | Castle Nut (Hex) | Steel | Plain | 5/16-24 | 5/16-24 slotted castle nut b18.2.2 | 3,571 |
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| All Size | TX | Castle Nut (Hex) | Steel | Plain | 5/16-24 | 5/16-24 slotted castle nut plain b18.2.2 | 458 |
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