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ARP Bolts 5/16-18 x 1.500 12pt Stainless Steel Fasteners Set of 5 - 612-1500

If you're diving into a project that demands some serious strength and reliability, these 612-1500 ARP 5/16-18 x 1.500 12pt Stainless Steel Bolts are worth considering. I've had my fair share of experiences with fasteners, and let me tell you, these bad boys stand out.

First off, the 5/16-18 in. RH size is pretty standard, but don’t let that fool you—these bolts pack a punch. The underhead length of 1.500 inches gives you just the right amount of grip without being overkill. Plus, the 12-point head style means you can get a solid wrench grip without slipping, which is a lifesaver when you're working in tight spots.

Now, let’s talk material. These are made from ARP Stainless 300, which is top-notch in the world of fasteners. The polished finish not only looks great but also helps resist corrosion, so you can trust them to hold up in various conditions. With a yield strength of 180,000 psi, you’re looking at some serious durability here. They won't let you down when the pressure's on.

And if you're wondering about the wrench size, you’ll need a 3/8 in. diameter to get these tightened up just right. Oh, and they come with washers, which is a nice touch—no need to hunt those down separately. You’ll get a set of 5 bolts, so you can tackle multiple projects without scrambling for more.

In short, if you want a reliable, tough fastener that’s built to last, these ARP bolts are a solid choice. I've used them in a few builds now, and they’ve never let me down. Just grab your wrench, and you’re good to go!

Other Part Numbers:
ARP Bolts #arp612-1500

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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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