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ARP 300-8311 Metric Cylinder Head Nuts - 12-Point 2-Piece

Part of: ARP Cylinder Head Nuts

Other options in this family: ARP 400-8344 ARP 300-8392 ARP 300-8395 ARP 300-8340 ARP 300-8324

Manufacturer

Picture for manufacturer ARP

Part Number

300-8311
13 reviews
Sale Price

$8.99

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

Engineered for professional engine builders and performance enthusiasts, these precision-manufactured nuts deliver exceptional clamping force and reliability under extreme conditions.

Key Features:

  • Constructed from premium 8740 chrome moly steel with 180,000 psi tensile strength
  • 12-point design allows precise torque application and facilitates easier installation in tight spaces
  • Black oxide finish provides corrosion resistance and professional appearance
  • Thick wall construction ensures optimum strength and rigidity for demanding applications
  • Manufactured to ARP's exacting quality standards for consistent performance
  • Metric threading for direct compatibility with metric cylinder head studs

ARP fasteners are trusted by professional racing teams and engine builders worldwide for their superior materials, precise manufacturing tolerances, and proven durability. These 12-point nuts are ideal for high-performance engine builds, racing applications, and anywhere maximum clamping force and reliability are critical.

Products specifications

Fastener Yield Strength (psi)

150,000 psi

Nut Finish

Black oxide

Nut Material

Steel

Nut Style

12-point

Nylon Insert

No

Quantity

Sold as a pair.

Self-Locking

No

Size

M8 x 1.25

Socket

10mm

Washers Included

No

Wrench Diameter

10mm

Excellent in every way, thank you!

Fast and easy shopping

Quick and easy!

Awesome

Very easy process. Not all sites this easy to navigate. Thank you!

Good cheaper than ebay

Ordering process was simple and clear.

dd

Found Autoplicity through price searching. Best price, easy to navigate site, quick service. Bookedmarked for future use!

An easy to navigate website, great prices and efficient company. I will definitely check Autoplicity first for all of my automotive needs. From purchase to arrival I was well informed as to the status of my order.

I was apprehensiveness at first to make a major purchase with Autoplicity due to their extremely low price and lack of reviews. I decided to take the chance and I am very glad I did. I made my order on a Monday morning at 0900 eastern time and my product arrived on Wednesday at 3pm. The item was exactly as described and the most astonishing part is that my purchase was released from the factory less than 45 days ago. I was expecting a model that had been sitting on a shelf for the last year and needed to be updated. That was not the case. I will definitely order from Autoplicity again in the future.

Great price,fast shipping, will buy from again. Thanks

great prices,fast shipping,cheaper than discount warehouse

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Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy