ARP Bolt Kit 1/4"-20 x 1.25" UHL w/ 5/16" Hex Head Black 5pk 650-1250

ARP Bolt Kit 1/4"-20 x 1.25" UHL w/ 5/16" Hex Head Black 5pk

The ARP Bolt Kit is designed for those who demand premium quality and reliability in their fasteners. Ideal for DIY enthusiasts, tradies, and professionals, this kit includes 5 high-strength chromoly bolts that are perfect for securing components on cars, boats, or trailers. Manufactured by ARP, a trusted name in automotive fasteners, these bolts ensure a secure fit and long-lasting performance.

These specially heat-treated 8740 chromoly fasteners feature a black oxide finish, providing both durability and corrosion resistance. With a nominal tensile strength of 180,000 psi, they offer a substantial extra margin of safety over standard Grade 8 hardware, making them an excellent choice for critical applications.

Key features

• Premium chromoly construction for enhanced strength and durability.
• Black oxide finish for improved corrosion resistance.
• Nominal tensile strength of 180,000 psi for added safety.
• Includes 5 bolts, suitable for various applications.
• Designed for easy installation with a 5/16" hex head.

Technical details

• Size: 1/4"-20 x 1.25"
• Material: 8740 chromoly
• Finish: Black oxide
• Pack size: 5 bolts
• Hex head size: 5/16"

Applications / fitment

These bolts are typically used in high-stress environments where reliability is crucial.

• Automotive applications for securing engine components.
• Marine use for fastening parts on boats.
• Trailers requiring robust fastening solutions.
• General DIY projects needing high-strength fasteners.
• Suitable for use in racing and performance vehicles.

Why buy from Mick’s Gone Bush?

• Trusted Australian business focused on reliable power, auto-electrical, and service parts.
• Stock sourced from reputable distributors and brands.
• Practical support for trade, off-grid, and fleet customers.
• Clear shipping, warranty, and customer service.

Frequently asked questions

What is the tensile strength of these bolts?

The ARP Bolt Kit features a nominal tensile strength of 180,000 psi, providing a substantial safety margin over standard Grade 8 hardware.

Can these bolts be used in marine applications?

Yes, the black oxide finish offers improved corrosion resistance, making them suitable for marine use.

What tools do I need for installation?

You will need a 5/16" socket or wrench to install these hex head bolts.

Are these bolts suitable for racing applications?

Absolutely! These high-strength chromoly bolts are ideal for racing and performance vehicles where reliability is critical.

How many bolts are included in the kit?

The kit includes 5 high-quality bolts.