ARP Automotive: Ensuring the Finest Automotive Fasteners to Withstand Extreme Pressure | EBS Racing


A chain is only as strong as its weakest link, and that same principle holds true for fasteners. If you’re building a high-powered engine, the bolts and studs have to be able to withstand extreme pressure. That’s why EBS Racing has teamed with ARP Automotive Products, and now stock their entire line of Porsche related race-quality bolts and studs. An engine is only as strong as its weakest bolt, and we don’t use anything but the best in our engine builds. You should too.


What Makes a Strong Fastener?



Design
Typically, automotive fasteners are designed to meet industry standards for stress and torque load. But ARP goes beyond the accepted standards, engineering each nut, stud and bolt for its specific application. This is done with lots of math, and clever engineering like reducing the number of necessary threads in order to reduce fatigue stress. Lots of thought goes into each ARP fastener, which means you can just put the hammer down and not worry about your car, or your engine coming apart.

Metal
The strength of a fastener is not only affected by its design, but also by the metal it’s made of. Most automakers use stainless steel nuts and bolts to hold their vehicles together. And this is perfectly fine for the average driver. ARP even makes stainless steel fasteners, which are ideal for repairs and restorations. But if you want your Porsche to be strong enough to handle anything, ARP makes automotive fasteners that offer up to double the tensile strength of normal nuts and bolts.




Available ARP Automotive Fastener Types

Stainless Steel: Perfect for restoration and repairs. ARP “Stainless 300” polished stainless steel fasteners resist rust and corrosion, while providing a tensile strength rating of up to 170,000 psi. 




8740 Chrome Moly: Referred to as a ‘quench & temper steel’, this heat-treated steel alloy has higher fatigue resistance than ordinary stainless steel. And its 180,000-210,000 psi tensile strength makes it ideal for moderate-stress racing applications.

ARP2000®: ARP2000 is a proprietary alloy steel that’s heat treated to produce a material with higher tensile strength than 8740 chrome moly. It provides a clamp load of 220,000 psi, which makes it perfect for short-track and drag racing applications. ARP2000 fasteners also provide superior resistance to stress corrosion and hydrogen embrittlement.

L19: If your Porsche is going way beyond what Stuttgart intended, then ARP L19 fasteners are what you’re looking for. This is premium steel can deliver a clamp load of 260,000 psi, but it must be kept moisture-free and well lubricated.

Aermet®: One step above L19 is Aermet, a super-alloy with an incredible tensile strength of 290,000-310,000 psi. Developed for the high-stress loads of top fuel and funny car racing, Aermet is the ideal metal for extreme applications. But it must be kept well-lubricated and moisture free.

Inconel 718: Designed for extreme high & low temperature applications (like rally cars), this nickel-based metal provides 210,000-230,000 psi tensile strength...no matter what Mother Nature throws at you.

ARP3.5® (AMS5844): Originally developed for aerospace applications and jet engines, ARP3.5 fasteners are widely used in NASCAR, IRL and Formula 1. This high-cobalt material provides incredible fatigue resistance, and a tensile strength range of 260,000-280,000 psi.

Custom Age 625 Plus®: Optimized to resist corrosion and oxidation, this super-alloy offers superior tensile strength of 260,000-280,000 psi, making it ideal for a number of extreme applications.


Titanium: Available for special order, ARP titanium fasteners not only offer superior corrosion resistance, but they’re 40% lighter than a comparable steel fastener. Whether you’re building a jet...or a Really fast Porsche, then ARP & EBS Racing has you covered.


ARP History

In 1968, a man named Gary Holzapfel started ARP in his backyard garage. He was a racing enthusiast with many friends on the SoCal racing circuit. After watching many of his friend’s engines blow-up due to broken bolts and studs, Gary decided to do something about it. Drawing on his experience as an aerospace fastener designer, he developed a line of automotive fasteners that could actually withstand the extreme pressures that are created by racing engines.

Today, ARP operates several manufacturing facilities in Southern California, and holds full ISO 9001:2008 and AS9100 certification (this means they have to follow strict quality manufacturing processes). The ARP product line now includes over 4,000 types of fasteners from OEM-Grade stainless steel bolts, to exotic metal fasteners used by aerospace manufacturers, NASCAR, NHRA, and Formula 1 race teams. And EBS Racing now has their entire line of race-quality Porsche fasteners in-stock and ready to ship.

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