Your Cart

ARP 300-8331 Engine Cylinder Head Bolt Set

Manufacturer

ARP

<p>Today, ARP&rsquo;s product line contains thousands of part numbers, and has expanded to include virtually every fastener found in an engine and driveline and throughout the suspension and frame. These range from quality high performance OEM replacement parts to exotic specialty hardware for Formula 1, IndyCar, NASCAR and NHRA drag racing and marine applications.</p>

Picture for manufacturer ARP

Part Number

300-8331
10 reviews
03/13/2036 10:21 AM
Sale Price

$14.71

In Stock (10+)

delivery box

Usually delivered within 2 days

Add To Cart

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

To maintain a reputation for "zero defects", ensure optimum quality control, and produce fasteners of exceptionally high quality, ARP controls all aspects of the manufacturing process, performing all operations in-house where they can be closely monitored. ARP takes extraordinary steps to produce the very finest products of their kind on the market today. These compact 12-point style nuts are manufactured from the finest aerospace-quality polished stainless steel, and are rated at 180,000 psi tensile strength. Each package contains ten nuts with a socket size of 3/8 and a thread size of 5/16 - 24.

  • Package contains 10 nuts, each of which meets ARP's exacting quality control standards
  • Rated at 180,000 PSI, which is considerably stronger than Grade 8 hardware
  • Constructed from the finest aerospace-quality polished stainless steel
  • Thread size is 5/16 - 24, and socket size is 3/8
  • 12-point style is more compact than traditional hex style

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 set of 10.

Self-Locking

No

Size

5/16-24

Socket

3/8

Thread Size

5/16-24 RH in.

Washers Included

No

Wrench Diameter

3/8 in.

Easy to find parts

Outstanding service & quick delivery.

The parts I received were of high quality and met my expectations.

Thank you exactly what my customer needed.

I got royal purple in a couple of days

Order process was good.

Quick... exactly what i needed

Autoplicity was quick and easy to order from. I found just what I was looking for in absolutely no time at all, plus it was shipped extremely quickly. I would definitely order from this site/company again.<br><br>Thanks!

The site was easy to navigate and find what I needed. The price was the best I could find for the Husky weatherbeater floor mats that I needed for my car. Shipping was fast. Can't wait to have them in my car.

Great price, great business and quick shipping. Excellent transaction and would recommend them again.

Share icon
Return Policy
Returns are easy at Boatplicity

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