1-480-966-3040 Mon-Fri 8am to 5pm AZ
Performance & Aftermarket Car Parts - Vivid Racing Performance & Aftermarket Car Parts - Vivid Racing
Live Chat
Hello, Sign in My Account
Sign In
Wishlist
0
My Cart
My Cart $0.00
  See all Engine products
ARP Bolts M10 x 1.25 x 40mm Hex Black Oxide Chromoly Bolts (5/pkg) - 663-1005

If you're diving into some serious automotive work, you know that the right fasteners can make all the difference. These ARP M10 x 1.25 x 40 Hex Black Oxide Bolts are a solid choice for anyone looking to up their game. Made from ARP 8740 chrome moly, these bolts are built to last and can handle a lot of stress—like, we're talking a yield strength of 180,000 psi. That's some serious muscle right there.

When I first got my hands on these, I was impressed with the underhead length of 40mm. It gives you a bit of extra room for those tricky spots where standard bolts just won’t cut it. Plus, the hex head design means you can really crank them down without stripping. I’ve had my fair share of stripped bolts in the past, so this feature is a game changer.

And let’s not forget about the finish. The black oxide coating not only looks sleek but also adds a layer of protection against rust and corrosion. You definitely want that if you're working in the elements. Each set comes with five bolts and includes washers, which is a nice touch. It’s one less thing to worry about when you’re knee-deep in a project.

With a 12mm wrench diameter, these bolts fit snugly and are easy to work with. Whether you're upgrading your suspension or tackling a full engine build, having reliable fasteners like these in your toolkit can save you a lot of headaches down the line. Trust me, once you try them out, you’ll see why I keep coming back to ARP for my bolt needs.

Other Part Numbers:
ARP Bolts #arp663-1005

Proposition 65

⚠ WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

ARP Bolts Logo

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

Check out these other great products