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ARP 660-1005 M6 x 1.00 x 40mm Hex Head Bolt Kit Black Oxide 5-Pack

Manufacturer

Picture for manufacturer ARP

Part Number

660-1005
7 reviews
Sale Price

$15.89

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The ARP 660-1005 is a premium metric hex head bolt kit designed for automotive, marine, and trailer applications where superior strength and reliability are essential. This 5-piece kit features M6 x 1.00 thread pitch bolts with a 40mm under-head length, ideal for a wide range of fastening applications.

Premium 8740 Chrome Moly Construction:

Manufactured from heat-treated 8740 chrome moly steel, these bolts are nominally rated at 180,000 psi tensile strength, providing a substantial extra margin of safety compared to standard Grade 8 hardware. The black oxide finish offers corrosion resistance while maintaining a professional appearance.

Key Specifications:

  • Thread Size: M6 x 1.00 metric
  • Under-Head Length (UHL): 40mm
  • Thread Length: 18mm
  • Socket Size: 8mm hex head
  • Material: Heat-treated 8740 chrome moly steel
  • Finish: Black oxide
  • Tensile Strength: 180,000 psi nominal
  • Quantity: 5 bolts per kit (washers included)

What's Included:

Each kit includes five premium-grade hex head bolts and matching washers, ready for installation. These ARP fasteners deliver the quality and performance you expect from the industry leader in high-performance fasteners.

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

M6 x 1.00 x 40

Underhead Length (in)

1.575 in.

Underhead Length (mm)

40mm

Washers Included

Yes

Wrench Diameter

8mm

Wrenching

8mm

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