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ARP 661-1003 Metric Hex Bolt Kit M6 Stainless Steel 5-Pack

Manufacturer

Part Number

661-1003
Sale Price

$12.77

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 661-1003 is a premium 5-piece metric hex bolt kit designed for differential and ring & pinion installations, as well as general automotive, marine, and trailer applications. These high-quality fasteners are manufactured from specially alloyed ARP 300 stainless steel, providing exceptional strength and corrosion resistance.

Key Features:

  • Nominally rated at 180,000 psi tensile strength for superior clamping force
  • Constructed from ARP 300 stainless steel for rust-free, maintenance-free performance
  • Premium polished finish for professional appearance
  • Substantially stronger than standard Grade 8 hardware
  • 12-point head design for easier installation in tight spaces
  • Includes matching washers for complete installation

ARP fasteners are the choice of professional engine builders and performance enthusiasts who demand reliability and precision. Each bolt is manufactured to exacting tolerances and undergoes rigorous quality control to ensure consistent performance in critical fastening 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 30

Underhead Length (in)

1.181 in.

Underhead Length (mm)

30mm

Washers Included

Yes

Wrench Diameter

10mm

Wrenching

10mm

all good

The ordering process was easy, super fast shipping, great quality tires.

Good selection of auto parts, great parts, and really fast shipping. Honestly I don't understand why there are so many negative reviews for this company. I received no compensation for this review, will certainly use Autoplicity again.

No hassels... exact match to old worn tires.

thanks

I had to place my order 4 times to get the system to accept the quantity I needed. I also checked into your email to check on my order and was told that my order did not exist. I had to call to make sure it hadn't been lost. Love the shocks, just installed this morning.

Easy peasy It was quick Didn't have time to change my mind

Straight forward pricing and great product!!!

Arrived in good working order.

Easy transaction, great price.

Autoplicity gave quick shipping and great status notifications of my order. Products were as advertised. Best prices around. Would definately recommend this company to people.

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