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ARP 740-1125 Black Oxide 12-Point Bolt 1/4-28 x 1.125 Inch

Manufacturer

ARP

<p>Today, ARP&rsquo;s product line contains thousands of part numbers, and has expanded to include virtually every fastener found in an engine and driveline and throughout the suspension and frame. These range from quality high performance OEM replacement parts to exotic specialty hardware for Formula 1, IndyCar, NASCAR and NHRA drag racing and marine applications.</p>

Picture for manufacturer ARP

Part Number

740-1125
9 reviews
03/11/2036 8:47 PM
Sale Price

$10.69

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The ARP 740-1125 is a premium-quality chromoly bolt designed for high-performance automotive, marine, and racing applications. This bolt features a 1/4 inch-28 fine thread with 1.125 inch under-head length (UHL) and a 12-point head design that provides superior torque application and accessibility in tight clearance situations.

Key Features:

  • Heat-treated 8740 chromoly steel construction with black oxide finish
  • Rated at 180,000 psi tensile strength - exceeding Grade 8 hardware specifications
  • 12-point head design with 5/16 inch wrenching size for precise installation
  • 1/4 inch-28 fine thread for maximum clamping force
  • 1.125 inch under-head length (UHL)
  • Corrosion-resistant black oxide coating
  • Sold in 5-piece sets with washers included

ARP bulk fasteners are manufactured to the same exacting standards as their application-specific kits, using premium SDF (seamless and defect-free) steel stock. These bolts provide a substantial safety margin over conventional hardware, making them ideal for engine builds, suspension components, chassis fabrication, and any critical fastening application where reliability is paramount.

nice and easy

2nd time ordering and have had a great experience both times

Overall experience was good until we had to return the item because it wouldn't work with the seat we had. Problem is that when we tred to get the specs on the item you didn't have any of the measurements available. So I was told that if it didn't work I could retun it. When I did you said it was because I ordered wrong so I would be charged to return it. It was wrong because you didn't have any info on the actual size and the only way to see if it would work was to order it.

Great place for instock accurate information

You have the part I need while other auto part stores didn&amp;#039;t. Great!

quick and easy!

Great service, perfect fit and speedy delivery! I&rsquo;ll be back.

The free shipping sold me on this sale. Very happy

received in good shape

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