ARP Imperial High Tensile Hex Nuts - 7/16 Inch-20 / 11/16 Inch Socket

ARP hex nuts manufactured from high tensile 8740 Chrome Moly steel. Rated to 180,000 psi tensile s...

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Demon TweeksARP Imperial High Tensile Hex Nuts - 3/8"-24 - 9/16" Socket Size Pack Of 10
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eBay10 x ARP Imperial High Tensile Hex Nuts - 3/8 Inch-24 / 9/16 Inch Socket
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Product Information

Full details

This guide is for motorsport enthusiasts and anyone requiring high-strength fastening solutions. The ARP Imperial High Tensile Hex Nuts offer a critical advantage in high-stress applications due to their superior material strength. A potential consideration is ensuring correct sizing for your specific bolt application.

All features

ColourBlack
Model Part Number200-8636
BrandARP

Extended Product Information

FAQs

What does 180,000 psi tensile strength mean for me?

It means these nuts are exceptionally strong and can withstand very high pulling forces before breaking. This is crucial for applications like motorsport where extreme stress is common.

Are these nuts suitable for everyday vehicles?

While they are strong, they are specifically designed for high-stress applications. For standard automotive use, ARP bolts and nuts might be overkill, but they offer superior reliability if you demand it.

What is 8740 Chrome Moly steel?

It is a high-strength alloy steel known for its excellent durability and resistance to stress, making it ideal for demanding fastener applications.

Can I use these nuts with non-ARP bolts?

You can thread them onto bolts with the same size and thread pitch, but ARP designs their products to work best together. For guaranteed performance and safety, using ARP bolts is recommended.

How do I know which size nut I need?

Refer to the product title and specifications. The size is typically indicated by the bolt thread diameter and pitch (e.g., 7/16"-20) and the required socket size (e.g., 11/16").

What is the purpose of the black oxide finish?

The black oxide finish provides a layer of corrosion resistance and a professional appearance. It helps protect the steel from rust and environmental damage.

Troubleshooting

Nut will not thread onto bolt

Verify that the nut's thread size and pitch (e.g., 7/16"-20) exactly match the bolt's specifications. Ensure there is no cross-threading or damage to the threads on either the nut or the bolt.

Difficulty in tightening

Confirm you are using the correct size socket. Ensure the bolt threads are clean and free of debris. Do not force the nut; if resistance is met, re-evaluate thread compatibility and condition.

Black oxide finish appears worn

This is often cosmetic and due to normal wear and tear, especially with frequent assembly/disassembly or aggressive handling. The underlying steel strength remains unaffected unless significant corrosion is present.

Pros and Cons

Pros

  • Exceptional material strength (180,000 psi tensile strength)
  • Durable black oxide finish for corrosion resistance
  • Ideal for high-stress and motorsport applications
  • Ensures reliable fastening with ARP high-tensile bolts
  • Made from high-quality 8740 Chrome Moly steel

Cons

  • Specific sizing required; not universally compatible
  • May be overkill for low-stress applications
  • Requires compatible ARP bolts for optimal performance
  • Black oxide finish can show wear with aggressive use

Setup, Compatibility & Care Instructions

Setup: Ensure the hex nut size and thread pitch precisely match the ARP high tensile bolt being used. Hand-thread the nut onto the bolt to confirm correct engagement before applying any tools. Use the appropriate socket size (e.g., 11/16" for the 7/16"-20 nut) for tightening.

Compatibility: These nuts are specifically designed for use with ARP high tensile bolts. While they may thread onto other bolts of the same size and pitch, optimal performance and safety are guaranteed only when paired with genuine ARP bolts.

Care: Keep the nuts clean and dry when not in use. The black oxide finish offers good corrosion resistance, but prolonged exposure to moisture or harsh chemicals can degrade it over time. Store in a dry environment. If used in corrosive conditions, consider periodic inspection and maintenance.

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