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ARP 642-4000 Stainless Steel Bolt - 12-Point Kit 5-Pack

Manufacturer

Part Number

642-4000
Sale Price

$19.94

Estimated ship date Thursday, November 26

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No Hassle Returns

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Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The ARP 642-4000 is a 5-piece kit of premium quality 12-point bolts designed for universal applications on cars, boats, and trailers. These fasteners are manufactured from specially alloyed ARP 300 stainless steel, offering exceptional strength and corrosion resistance for reliable performance in demanding environments.

Key Features:

  • Nominally rated at 180,000 psi tensile strength for substantial safety margin over Grade 8 hardware
  • 12-point head design for improved wrench engagement and installation access
  • Premium ARP 300 stainless steel construction resists rust and corrosion
  • Specially polished finish provides attractive appearance
  • Maintenance-free performance in marine and automotive applications
  • Includes washers for complete installation

ARP fasteners are engineered to exceed the performance of standard Grade 8 hardware, providing professional-grade reliability for critical fastening applications. The stainless steel construction ensures long-term durability without the need for protective coatings or ongoing maintenance.

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

3/8-16 x 4

Thread Size

3/8-16 in.

Underhead Length (in)

4.000 in.

Washers Included

Yes

Wrench Diameter

3/8 in.

Wrenching

3/8

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