When it comes to pushing the limits of performance, you can’t overlook the importance of quality fasteners. ARP has been in the game since 1968, and they’ve been perfecting race fastener technology ever since. These guys know what it takes to keep your engine together under some serious stress. If you're running a diesel engine, you need fasteners that can handle the extreme loads, and that’s exactly what you get with these ARP M12 x 1.75 x 100 Hex Black SS Bolts.
These bolts are built to last. They’ve got a 14mm hex socket size, making them easy to work with when you’re under the hood. You’ll want to torque these bad boys down to about 98 ft-lbs (that’s 132.9 Nm for those who prefer metric). The installation pre-loads are high, which means they’re designed to stretch a bit during installation, ensuring a snug fit that you can trust when you’re pushing your rig to the max.
Let’s dive into some specs that matter. The overall length (UHL) is 100mm, with a thread length of 30mm and a grip length of 70mm. The thread diameter is M12 x 1.75mm, which is pretty standard for a lot of applications, but these bolts stand out with a grip diameter of 12mm and a head height of 11.7mm. Plus, the collar diameter is 21.6mm, giving you a solid base for any high-performance setup.
Sold in packs of five, these bolts are perfect for anyone looking to upgrade their diesel setup or just replace some worn-out fasteners. Trust me, when you’re out on the road or hitting the trails, you don’t want to worry about whether your engine is held together properly. With ARP, you can focus on the ride.
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

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 RacingIf 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.