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ARP 401-8300 12-Point Chrome Moly Fastener Nut

Manufacturer

ARP

<h3>The Gold Standard in Performance Fasteners</h3> <p>When racing enthusiast Gary Holzapfel recognized that fastener failure was causing many engine breakdowns in 1968, he founded Automotive Racing Products (ARP) to solve a critical problem in motorsports. Drawing on his aerospace fastener manufacturing experience, Holzapfel created a company that would revolutionize the performance fastener industry. Today, ARP stands as the world's premier manufacturer of high-strength bolts, studs, nuts, and specialized hardware for racing and high-performance applications.</p> <p>ARP controls all aspects of the manufacturing process in-house, with all operations closely monitored, enabling the company to maintain its reputation for zero-defect quality. Every fastener undergoes forging, heat treatment, thread rolling, and precision finishing at ARP's Southern California facilities, which span over 115,000 square feet. This vertically integrated approach ensures that each component meets exacting standards for strength, fatigue resistance, and reliability under extreme conditions.</p> <h3>Engineered for Championship Performance</h3> <p>ARP's customer roster reads like a who's who of professional motorsports. The product line ranges from quality high-performance OEM replacement parts to exotic specialty hardware for Formula 1, IndyCar, NASCAR and NHRA drag racing and marine applications. The company's fasteners have secured victories in virtually every major racing championship worldwide, from Top Fuel dragsters to Formula One cars, proving their worth under the most demanding conditions imaginable.</p> <p>The brand's <a href="/48-arp-engine-cylinder-head-bolt-set-10306">engine cylinder head bolt sets</a> represent the cornerstone of ARP's catalog, offering engine builders the clamping force and reliability needed to prevent head gasket failure in high-boost and high-compression applications. These precision-engineered fasteners utilize proprietary materials and heat treatments that deliver up to ten times the fatigue strength of conventional bolts, making them essential for any serious performance build.</p> <p>For engine internals, ARP manufactures <a href="/48-arp-engine-connecting-rod-5276">connecting rods</a> designed to withstand extreme cylinder pressures and high RPM loads. Each rod is manufactured to aerospace standards with tight tolerances and superior material properties. Whether you're building a street performance engine or a full competition powerplant, ARP connecting rods provide the strength and consistency that professional engine builders demand.</p> <h3>Complete Fastener Solutions</h3> <p>Beyond engine components, ARP's product range extends throughout the entire vehicle. The company's <a href="/48-arp-wheel-lug-stud-7680">wheel lug studs</a> offer critical safety and performance benefits for racing and high-performance street applications, providing greater clamping force and durability than factory studs. ARP's product line contains thousands of part numbers and has expanded to include virtually every fastener found in an engine and driveline.</p> <p>Individual <a href="/48-arp-engine-cylinder-head-bolt-5308">engine cylinder head bolts</a> are also available for custom applications or specific replacement needs, manufactured to the same exacting standards as complete sets. This flexibility allows builders to source exactly what they need for specialized builds or repairs without compromising on quality.</p> <p>What sets ARP apart is not just the breadth of their catalog, but their willingness to develop custom solutions for unique applications. The company maintains complete R&D capabilities, including metallurgical research, product design, prototype machining, and extensive laboratory testing. This engineering expertise ensures that whether you're installing a simple head stud kit or building a record-setting race engine, ARP fasteners deliver the reliability and performance that professionals trust.</p>

Part Number

401-8300
07/30/2036 12:24 PM
Sale Price

$4.32

In Stock (10+)

delivery box

Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The ARP 401-8300 is a precision-engineered 12-point nut designed for high-performance automotive applications where strength and reliability are critical. Constructed from premium 8740 chrome moly steel, this single fastener nut delivers an impressive 180,000 psi tensile strength to withstand extreme loads and stress.

Key Features:

  • 8740 chrome moly steel construction for superior strength and durability
  • 12-point design allows for precise torque application and multiple wrench positions
  • Rated at 180,000 psi tensile strength for demanding performance applications
  • Black oxide finish provides corrosion resistance and professional appearance
  • Manufactured to ARP's exacting quality standards with tight tolerances
  • Thick wall design optimizes strength and rigidity under load

ARP fasteners are the choice of professional engine builders and racers worldwide. This 12-point nut features precision threads and heat-treated chrome moly construction that ensures consistent clamping force and reliability in high-vibration, high-temperature environments. The 12-point configuration provides 30-degree engagement angles for easier installation in tight spaces compared to traditional 6-point nuts.

Products specifications

Fastener Yield Strength (psi)

180,000 psi

Nut Finish

Polished

Nut Material

Stainless steel

Nut Style

12-point

Nylon Insert

No

Quantity

Sold individually.

Self-Locking

No

Size

1/4-20

Thread Size

1/4-20 in.

Washers Included

No

Wrench Diameter

5/16 in.

Easy to use website, great communication, and product was exactly as described.

Quick and easy to pay. I used my Amazon account

They did not have the part I ordered, but they quickly provided me with a nearly equivilent part! The shipping was fast and it was packed perfectly. I like them peoples!!!

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Great

Ordered a VP Racing fuel container and fill tube late Friday and it's already on the way. <br>Best price online and very quick service. Great transaction will definitely order from vendor again. <br>Thanks Autoplicity.

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