My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

ARP 645-2500 Chromoly 12-Point Bolt Kit 7/16-14 x 2.5 Inch

Manufacturer

Picture for manufacturer ARP

Part Number

645-2500
5 reviews
Sale Price

$19.37

Estimated ship date Tuesday, November 17

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

The ARP 645-2500 is a premium 5-piece bolt kit featuring 12-point head fasteners manufactured from specially alloyed ARP 300 stainless steel. These high-performance bolts are nominally rated at 180,000 psi tensile strength, providing a substantial safety margin over standard Grade 8 hardware for demanding automotive, marine, and trailer applications.

Key Features:

  • ARP 300 stainless steel construction for superior strength and corrosion resistance
  • 12-point head design for improved grip and installation access
  • 180,000 psi tensile strength rating exceeds Grade 8 specifications
  • Specially polished finish delivers excellent appearance and rust resistance
  • Includes washers for complete installation
  • Maintenance-free design for long-term reliability

ARP fasteners are precision-engineered to deliver professional-grade performance and durability. The stainless steel construction ensures these bolts will maintain their strength and appearance even in harsh environments, making them ideal for high-stress applications where reliability is critical.

Products specifications

Fastener Finish

Black oxide

Fastener Head Style

12-Point

Fastener Material

Chromemoly

Fastener Yield Strength (psi)

170,000 psi

Material

Black Oxide

Quantity

Sold as a set of 5.

Size

7/16-14 x 2.5

Thread Size

7/16-14 in.

Underhead Length (in)

2.500 in.

Underhead Length (mm)

63.5mm

Washers Included

Yes

Wrench Diameter

1/2 in.

Wrenching

1/2

Best price around. Great Communication. Fast shipping. What else can I ask for?<br>I have already purchased again from them.

Best pricing I found anywhere on the part I needed, quick shipping, no hassle. Definitely going to be a repeat customer.

easy to find what i needed and best prices on the internet.

Very fast shipping, lowest prices on the web.

Great prices and fast shipping. I had a question about the product and the had all the answers. I would definitely shop here again.

Share icon
Return Policy
Returns are easy at THMotorsports

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