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Steel castle nuts and hex nuts are essential fastening components widely used in mechanical assemblies, automotive systems, and construction frameworks. Castle nuts feature slots o...
Steel castle nuts and hex nuts are essential fastening components widely used in mechanical assemblies, automotive systems, and construction frameworks. Castle nuts feature slots on the top that allow insertion of a cotter pin, ensuring secure locking and resistance against vibration or loosening. Hex nuts, with their six-sided design, provide easy tightening with wrenches and distribute load evenly. Manufactured from premium steel, these nuts offer superior tensile strength, durability, and corrosion resistance. Available in multiple finishes such as zinc-plated, chrome-plated, and stainless steel, they comply with ISO/DIN standards for reliability in demanding environments.
| Attribute | Value |
|---|---|
| Core Product Name | Steel Castle Nut / Hex Nut |
| Material | High-Strength Steel |
| Nut Types | Castle Nut (Slotted), Hex Nut |
| Locking Mechanism | Cotter Pin (for Castle Nut) |
| Thread Type | Metric & Imperial (M6–M24, UNC/UNF) |
| Finish Options | Zinc-Plated, Chrome-Plated, Stainless Steel |
| Sizes Available | M6 – M24 (custom sizes available) |
| Tensile Strength | 400–1000 MPa (depending on grade) |
| Corrosion Resistance | Enhanced with plated or stainless finishes |
| Features | Secure fastening, vibration resistance, durable, safety locking |
| Additional Information | |
|---|---|
| SKU | 1 |
| Country of Origin | India |
| Customisable | No |
Steel castle and hex nuts are extensively used in: Automotive assemblies (wheel hubs, suspension systems, engine components) Construction frameworks (structural joints, heavy-duty fastening) Industrial machinery (equipment housings, vibration-prone assemblies) Aerospace and defense (secure locking with cotter pins in critical joints) Castle nuts are preferred where safety and vibration resistance are critical, while hex nuts are used for general fastening across industries.
| Production Lead Time | 4-7 Days |
| Available Stock | In stock |
| Sample Availability | No |
| Shipping Internationally | Yes | |
| Methods |
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| IncoTerms |
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| Port of Dispatch | -- | |
| Packaging Type | -- | |
| Units per Package | -- | |
| Barcode / HSN / GTIN / UPC | 0 | |
| Dispatch Lead time | Ships in 7 Days |

A steel castle nut is a slotted fastener designed to be locked with a cotter pin for vibration resistance.
They are widely used in automotive assemblies, aerospace, and industrial machinery where secure locking is critical.
Castle nuts use a cotter pin for locking, while hex nuts are standard six-sided fasteners for general use.
Yes, especially when zinc-plated, chrome-plated, or made from stainless steel.
Yes, they are manufactured to ISO, DIN, and ASTM standards for quality and reliability.
Shipping fee and delivery date to be negotiated. Contact supplier now for more details.