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ARP Bolts M8 x 1.25 12pt Nut Kit Steel Black Oxide 10/pkg - 150,000 psi Yield Strength - 300-8312

If you're diving into some serious upgrades or repairs, you might want to check out this ARP M8 x 1.25 12pt Nut Kit. I've been using these nuts for a while now, and let me tell you, they’re a game changer. Each nut is designed with a thread size of 8mm x 1.25, which means they fit perfectly for a lot of applications, especially if you're working on a Jeep or any performance vehicle that demands reliability.

Now, these aren’t your run-of-the-mill nuts. They come in a 12-point style, which makes it easier to get a grip on them, especially in tight spaces. I’ve found that the 10mm wrench diameter is just right for most jobs, allowing for a snug fit without stripping. Plus, the black oxide finish not only looks sleek but also adds a layer of corrosion resistance—definitely something you want when you’re out on the trails or dealing with the elements.

One thing to note is that these nuts don’t have a nylon insert or self-locking feature, but that’s not a dealbreaker for me. The steel material is tough enough to handle the stress, boasting a yield strength of 150,000 psi. That kind of durability is what you need when you’re pushing your rig to the limits.

Each kit comes with 10 nuts, so you're set for a good while unless you’re doing some serious modifications. Just keep in mind that washers aren’t included, but honestly, I’ve never found that to be an issue. Overall, if you want nuts that can take a beating and keep your vehicle secure, this kit is worth considering.

Other Part Numbers:
ARP Bolts #arp300-8312

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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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