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ARP 3/8-24 Hex Nut Kit, Steel, Black Oxide Finish, 180,000 psi Yield Strength - 200-8604

If you're diving into some serious projects or just need to tighten things up a bit, the ARP 3/8-24 Hex Nut is a solid choice. I’ve had my fair share of nuts and bolts, but this one stands out for a few reasons.

First off, let's talk about the thread size. It's a 3/8-24, which means it’s got that nice balance of strength and versatility. Whether you’re working on a custom build or just doing some repairs, this nut fits right in. The hex style makes it easy to grip and torque down without any fuss. Seriously, if you’ve ever struggled with a slippery nut, you’ll appreciate this one.

Now, I know some folks get hung up on whether a nut has a nylon insert or is self-locking. This one doesn’t have those features, but don’t let that fool you. The steel material and black oxide finish give it a robust feel and a bit of corrosion resistance, which is always a plus when you’re out in the elements. Plus, that finish just looks good, you know?

With a wrench diameter of 9/16 inches, it’s compatible with the tools you probably already have in your garage. And let’s not forget the yield strength—this little guy can handle up to 180,000 psi. That’s serious strength for a nut, making it reliable for high-stress applications.

Oh, and just to keep it real, these are sold individually, so if you need more than one, make sure to grab a few. I’ve learned the hard way that it’s always good to have extras on hand.

In short, if you want a dependable hex nut that won’t let you down, the ARP 3/8-24 is worth considering. It’s straightforward, tough, and gets the job done without any unnecessary frills.

Other Part Numbers:
ARP Bolts #arp200-8604

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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.

ARP Store | ARP Bolts | ARP Stud Kits | ARP Wheel Bolts | ARP Clearance

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