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ARP Bolts 3/8-16 x 5.000 Hex Stainless Steel Bolts (5/pkg) - High Strength Fasteners - 623-5000

So, let’s talk about something that really matters when you’re working on your diesel rig: fasteners. If you’re like me, you know that not all bolts are created equal. Enter ARP, a name that’s been around since 1968, doing some serious heavy lifting in the fastener game. These guys have been tweaking and perfecting their designs for decades, and it shows. Their fasteners are built to handle the kind of stress that would make lesser bolts crumble.

Take the ARP 3/8-16 x 5.000 Hex SS Bolts, for example. These aren’t just any bolts; they’re designed with the kind of strength you need for high-performance applications. We’re talking about head studs and main bolts that can take on extreme loads without breaking a sweat. The installation pre-loads are impressive, meaning these fasteners stretch a good bit during installation—this is what you want for a secure fit. You don’t want to be second-guessing your work out on the road.

Now, let’s get into the nitty-gritty. You’ll find a 3/8 hex socket size, which is pretty standard but effective. They torque down to 45 ft-lbs (61 Nm), so you know they’re not going anywhere once they’re in place. The overall length is 5.000 inches, with a thread length of 1.000 inches and a grip length of 4.000 inches. The thread diameter is 3/8-16, which fits a lot of common applications, and the grip diameter is also 3/8 inches. What’s nice is that the head height is reduced to 0.300 inches, which can come in handy in tight spaces. Plus, the collar diameter is 0.620 inches—just a bit of extra engineering to make sure these bolts work as hard as you do.

Each package comes with five bolts, which is perfect for those of us who like to keep a few spares on hand. Whether you’re beefing up your engine or tackling a drivetrain project, these ARP bolts are a solid choice. Trust me, when you’re out there pushing your vehicle to the limit, you’ll want to know that every part is up to the task.

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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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