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ARP Bolts 3/8in-24 x 0.500 UHL Black Oxide 12pt Chromoly (5/pkg) - High Strength Fasteners - 742-0500

If you’re diving into a project that demands some serious strength, these ARP 3/8in-24 x .500 UHL 12pt Black Oxide Bolts are worth checking out. Trust me, I've used them on my own builds, and they’ve held up like champs. With a fastener size of 3/8-24 in. RH, these bad boys are designed to take a beating and keep on going.

The underhead length is a neat 0.500 inches, making them just the right fit for a variety of applications. And let’s talk about the head style—these are 12-point bolts, which means you get a solid grip for torquing them down without stripping. That’s crucial when you’re working on something that needs to stay tight under pressure.

Made from high-quality chromoly, specifically ARP 8740 grade, these bolts are built to last. The black oxide finish not only looks sleek but also offers added corrosion resistance, which is something you’ll appreciate if you’re out there battling the elements. With a yield strength of 180,000 psi, they’re tough enough for both street and track use.

And don’t worry about your tools; the wrench diameter is a handy 3/8 in., so you won’t need to dig through your toolbox to find the right size. Plus, each set comes with washers included, making installation smoother and ensuring you’ve got everything you need right out of the box. You’ll get five bolts in a pack, which is perfect for most projects without breaking the bank.

Overall, if you’re looking for reliability and performance, these ARP bolts are a solid choice. They’ve served me well, and I think they’ll do the same for you.

Other Part Numbers:
ARP Bolts #arp742-0500

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⚠ WARNING: Cancer and Reproductive Harm
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The Story Behind ARP Bolts

ARP (Automotive Racing Products) was founded by Gary Holzapfel in 1968 when he noticed his drag-racing friends succumbing to bolt-induced engine failure as a result of poor-quality fasteners. He drew upon his expertise in the aerospace industry to develop a solution, which turned into a successful business nonetheless. 

Since its inception, ARP has been engineering and perfecting a wide range of bolts, studs, nuts, and other fasteners for engines, cylinder heads, headers, wheels, and transmissions. Today, ARP remains the undisputed world leader in automotive fasteners. Racing aficionados everywhere know and recognize the ARP brand and can vouch for its quality.

What Makes ARP Bolts So Special?

Located in Ventura, California, all ARP processes from raw wire to finished fasteners are conducted in-house, right here in the USA. The company continually improves its processes with strict quality control guidelines and is dedicated to producing products that are second to none. Simply put, ARP Bolts are better than the competition because of their quality materials and advanced processes. 

ARP prides itself on using only top-quality materials that are above the usual “aerospace-grade” quality that other manufacturers settle for. For example, while 8740 Chromoly steel has four different grades, ARP only uses the top two, SDF and CHQ. These grades cost twice as much as the lower commercial and aircraft grades, but deliver “zero defect” quality that you can trust each and every time.

ARP Bolts are built to withstand serious racing, possess greater tensile strengths, and can survive higher stress levels than most aircraft fasteners. ARP is dedicated to creating fasteners that boast ultimate strength and durability to ensure they last race after race. Its product lineup ranges from quality high-performance OEM parts to exotic specialty hardware for IndyCar, NASCAR, NHRA drag racing, Formula 1, and even marine applications.

Equip Your Ride with ARP Bolts at Vivid Racing

If you are looking to change the fasteners on your car, you’ve come to the right place. No other brand beats out ARP Bolts in terms of strength, quality, and race-proven success. Vivid Racing is, therefore, proud to carry an extensive lineup of products from American Racing Products like bolts, fluids, sealants, hand tools, stud kits, piston sleeves, wheel bolts, and more! If you have any questions regarding the parts above, please call our specialized sales team at (480) 966-3040.

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