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ARP 661-1013 Chromoly Hex Head Bolt M8 x 1.25 x 80mm Black Oxide 5-Pack

Manufacturer

Picture for manufacturer ARP

Part Number

661-1013
8 reviews
Sale Price

$17.82

Estimated ship date Wednesday, November 18

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Product Details

The ARP 661-1013 is a premium-quality chromoly hex head bolt designed for universal automotive, marine, and powersports applications. This 5-piece bolt kit features M8 x 1.25 metric threading with an 80mm underhead length (UHL), making it ideal for a wide range of installation needs where strength and reliability are paramount.

Key Specifications:

  • Thread Size: M8 x 1.25 metric
  • Underhead Length: 80mm
  • Thread Length: 22mm
  • Head Style: Hex head with 10mm socket size
  • Material: Heat-treated 8740 chromoly steel
  • Finish: Black oxide for corrosion resistance
  • Tensile Strength: 180,000 psi nominal rating
  • Yield Strength: 170,000 psi

Features and Benefits:

  • Substantially exceeds Grade 8 hardware specifications for maximum safety margin
  • Heat-treated 8740 chromoly steel construction for superior strength and durability
  • Black oxide finish provides excellent corrosion resistance
  • Washers included with each 5-piece kit
  • Universal fitment for cars, boats, trailers, and powersports vehicles
  • Precision manufactured to aerospace-quality standards

ARP chromoly bolts are the professional's choice when standard hardware simply won't do. Whether you're building a high-performance engine, upgrading suspension components, or replacing critical fasteners, these premium bolts deliver the strength and reliability demanded by racing and performance applications.

Products specifications

Fastener Finish

Black oxide

Fastener Head Style

Hex

Fastener Material

Chromemoly

Fastener Yield Strength (psi)

170,000 psi

Material

Black Oxide

Quantity

Sold as a set of 5.

Size

M8 x 1.25 x 80

Underhead Length (in)

3.150 in.

Underhead Length (mm)

80mm

Washers Included

Yes

Wrench Diameter

10mm

Wrenching

10mm

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The web site could use some updating or either there is a Glitch somewhere. I had to call to check on my order but it was already being shipped. They were on he ball, I just believe they are having computer troubles. Autoplicity had the best price I could find On my Bully Dog. Thanks Again!!

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