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ARP 743-3750 Stainless Steel Fastener Kit - 12-Point 5-Piece

Manufacturer

Picture for manufacturer ARP

Part Number

743-3750
17 reviews
Sale Price

$22.89

Estimated ship date Tuesday, February 02

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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 743-3750 is a premium 5-piece fastener kit featuring fine thread, 12-point bolts with included washers. These high-performance fasteners are ideal for automotive, marine, and trailer applications where strength and reliability are essential.

Key Features:

  • Specially alloyed ARP 300 stainless steel construction for superior corrosion resistance
  • Nominally rated at 180,000 psi tensile strength, exceeding Grade 8 hardware standards
  • 12-point head design for improved grip and reduced fastener rounding
  • Fine thread configuration for enhanced clamping force
  • Polished stainless steel finish resists rust and requires no maintenance
  • Includes matching washers for proper installation

ARP fasteners are manufactured to exacting tolerances and heat-treated to provide a substantial safety margin over standard hardware. The corrosion-resistant stainless steel construction ensures long-lasting performance in harsh environments while maintaining a professional appearance.

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

7/16-20 x 3.75

Thread Size

7/16-20 in.

Underhead Length (in)

3.750 in.

Underhead Length (mm)

95.3mm

Washers Included

Yes

Wrench Diameter

7/16 in.

Wrenching

7/16

Great

Very quick and received item earlier than expected.

Good service

Haven't fitted them to my truck, my size is not listed on the bag but they are adjustable to a point.

Great customer service and fast shipping thank you!

Outstanding service and pricing. Perfect one stop shop for all my automotive needs.

Fast shipping

Fast shipping and product seems to be decent.

Thank you

I purchased an extend-a-truck on autoplicity. It was the best price on the Internet. Autoplicity beat amazon by approximately $30. I received a confirmation it shipped the following day.

Great pricing and customer service. Item shipped on time and with no complicaitons. Best pricing on the internet that I could find. Great seller.

Easy check out

super easy! thanks!

Great service, best price available online and realistic shipping costs, Ordered 5PM Friday, shipped Monday , received Tuesday end of day. Beats driving to the local store. Highly recommended !!<br><br>RS Larchmont NY

wow great service great products supper fast shipping could not be any more happy with the products dose what it says it dose.

Sweetest price on this K&N Filter anywhere! Shipped within 24hrs too. I'm coming back to shop for my car next.

Great price and fast shipping eBay can't even match

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