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ARP 641-1000 Stainless Steel 12-Point Bolt Kit 5-Pack

Manufacturer

Picture for manufacturer ARP

Part Number

641-1000
6 reviews
Sale Price

$10.48

Estimated ship date Friday, October 16

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Product Details

The ARP 641-1000 is a premium 5-piece bolt kit designed for differential, ring and pinion, and general automotive, marine, or trailer applications. These fasteners deliver professional-grade strength and corrosion resistance for critical installations.

Key Features:

  • 12-point head design for improved wrench engagement and installation access
  • Manufactured from specially alloyed ARP 300 stainless steel for superior corrosion resistance
  • Nominally rated at 180,000 psi tensile strength, exceeding Grade 8 hardware specifications
  • Polished stainless steel finish provides attractive appearance and rust-free performance
  • Includes washers for complete installation
  • Maintenance-free design ideal for automotive, marine, and trailer applications

ARP fasteners are precision-engineered to provide a substantial safety margin over conventional hardware. The stainless steel construction ensures long-term durability even in harsh environments, while the 12-point head design allows for easier installation in tight spaces with multiple wrench positions.

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

5/16-18 x 1

Thread Size

5/16-18 in.

Underhead Length (in)

1.000 in.

Washers Included

Yes

Wrench Diameter

3/8 in.

Wrenching

3/8

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easy to use . will use again!

So far found what I've been looking for so I'm satisfied currently

Best price, easy checkout and fast delivery.

The best deal on the same parts that everyone else has. Saved me $75 from the best price any 'Seller" had on the "bay". Will be back. A+ service.

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