ARP head studs & ARP bolts

ARP (Automotive Racing Products) is the leading manufacturer of engine bolts of all kinds. ARP uses a metal mixture of iron, carbon, chromium and molybdenum in a special mixing ratio. So-called chrome molybdenum steel with the number 8740 is now well-known throughout the world. The particularly high tensile strength of this material makes for high-strength bolts and threaded bolts that withstand incredible tensile forces. With a value of 13.8 t/cm², this steel alloy is approximately twice as stable as the best standard bolts and threaded bolts offered by factory suppliers.

ARP (Automotive Racing Products) is the leading manufacturer of engine bolts of all kinds. ARP uses a metal mixture of iron, carbon, chromium and molybdenum in a special mixing ratio. So-called... read more »
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ARP head studs & ARP bolts

ARP (Automotive Racing Products) is the leading manufacturer of engine bolts of all kinds. ARP uses a metal mixture of iron, carbon, chromium and molybdenum in a special mixing ratio. So-called chrome molybdenum steel with the number 8740 is now well-known throughout the world. The particularly high tensile strength of this material makes for high-strength bolts and threaded bolts that withstand incredible tensile forces. With a value of 13.8 t/cm², this steel alloy is approximately twice as stable as the best standard bolts and threaded bolts offered by factory suppliers.

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Porsche ARP HEAVY DUTY Bolts for flywheel Porsche ARP HEAVY DUTY Bolts for flywheel
High strength ARP bolt made of molybdenum steel for mounting the flywheel to the crankshaft. Suitable for aircooled engines. Especially with tuned engines essential, because much higher torques must be transmitted to the crankshaft!...
From 69.95€ *
Mini ARP HEAVY DUTY Bolts for flywheel Mini ARP HEAVY DUTY Bolts for flywheel
High strength ARP bolt made of molybdenum steel for mounting the flywheel to the crankshaft. Suitable for all Mini engines Especially with tuned engines essential, because much higher torques must be transmitted to the crankshaft! Thread...
69.95€ *
BMW E30 M3 S14 ARP HEAVY DUTY Bolts for flywheel BMW E30 M3 S14 ARP HEAVY DUTY Bolts for flywheel
High strength ARP bolt made of molybdenum steel for mounting the flywheel to the crankshaft. Suitable for BMW S14 engines. Especially with tuned engines essential, because much higher torques must be transmitted to the crankshaft! Thread...
69.95€ *
Toyota ARP HEAVY DUTY Bolts for flywheel Toyota ARP HEAVY DUTY Bolts for flywheel
High strength ARP bolt made of molybdenum steel for mounting the flywheel to the crankshaft. Suitable for many 1.6L up to 2.4L engines. Especially with tuned engines essential, because much higher torques must be transmitted to the...
From 49.95€ *
M12 x 1.75 high strenght stainless steel screws ARP M12 x 1.75 high strenght stainless steel screws...
M12 x 1.75 screws made of high quality ARP steel for universal use. Wherever you need it! ARP screws are made from 8740 chromoly steel and have rounded threads. With a tensile strength of up to 180,000 PSI, these are up to 30% stronger...
From 31.95€ *
M12 x 1.50 high strenght stainless steel screws ARP M12 x 1.50 high strenght stainless steel screws...
M12 x 1.50 screws made of high quality ARP steel for universal use. Wherever you need it! ARP screws are made from 8740 chromoly steel and have rounded threads. With a tensile strength of up to 180,000 PSI, these are up to 30% stronger...
From 31.95€ *
M10 x 1.50 high strenght stainless steel screws ARP M10 x 1.50 high strenght stainless steel screws...
M10 x 1.50 screws made of high quality ARP steel for universal use. Wherever you need it! ARP screws are made from 8740 chromoly steel and have rounded threads. With a tensile strength of up to 180,000 PSI, these are up to 30% stronger...
From 26.95€ *
M10 x 1.25 high strenght stainless steel screws ARP M10 x 1.25 high strenght stainless steel screws...
M10 x 1.25 screws made of high quality ARP steel for universal use. Wherever you need it! ARP screws are made from 8740 chromoly steel and have rounded threads. With a tensile strength of up to 180,000 PSI, these are up to 30% stronger...
From 26.95€ *
M6 x 1.00 high strenght stainless steel screws ARP M6 x 1.00 high strenght stainless steel screws ARP
M6 x 1.00 screws made of high quality ARP steel for universal use. Wherever you need it! ARP screws are made from 8740 chromoly steel and have rounded threads. With a tensile strength of up to 180,000 PSI, these are up to 30% stronger...
From 24.95€ *
M8 x 1.25 high strenght stainless steel screws ARP M8 x 1.25 high strenght stainless steel screws ARP
M8 x 1.25 screws made of high quality ARP steel for universal use. Wherever you need it! ARP screws are made from 8740 chromoly steel and have rounded threads. With a tensile strength of up to 180,000 PSI, these are up to 30% stronger...
From 25.95€ *
Opel 2.0L 16V ARP Flywheel bolt kit Opel 2.0L 16V ARP Flywheel bolt kit
ARP Flywheel bolt kit for Opel/Vauxhall 2.0L 16V. Forged from high strength chrome-molybdenum steel with 200,000 psi tensile strength nearly twice as stable as the best series bolts from factory OEM. Perfectly crafted rolled threads from...
69.95€ *
Ford 2.3L Duratec Nockenwellenrad-Schrauben Ford 2.3L Duratec Nockenwellenrad-Schrauben ARP
ARP Nockenwellenrad-Schraubensatz der Pro-Serie. 15 mm, 12-Punkt-Kopf. Hergestellt aus Chromoly - Schwarz. Für 2.3L 16V Duratec-Motoren von Ford (verbaut in Mondeo, S-MAX und Galaxy).
37.95€ *
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Stud bolts and cylinder head bolts in outstanding quality

The ARP stud bolts, ARP connecting rod bolts and ARP cylinder head bolts in our ARP shop are produced in elaborate procedures over many work steps. Quality always takes top priority. Again and again, the ARP bolts and stud bolts are checked to ensure that they are perfectly round and straight. Many work steps and constant monitoring of the ARP screws and bolts with threads ensure the consistently outstanding quality of the products. They have one great advantage over all standard bolts: The high-quality material and the resultant, almost indestructible thread can be re-used.

ARP kits for complete assembly

Although the ARP stud bolts, ARP connecting rod bolts and ARP bolts are available separately at express request, they usually come in so-called kits. The kits include enough steel bolts or threaded bolts to carry out the complete assembly of a component: the installation of the cylinder head, the crankshaft housing or con-rod of an engine. A sufficient quantity of fastener assembly lube is included (ARP Ultra Torque) in all ARP kits. The ARP stud bolts are delivered with equally high-quality nuts and washers. The stud bolts have threads of different sizes at both ends.

Tool for fastening the ARP bolts and stud bolts

When installing a cylinder head or a crankshaft, for example, the bolts are initially bolted in the block using an Allen key. The final fastening is then done with a multi-tooth tool with a specified torque. The multi-tooth nut is contained in only a few kits – this is why you should order it in the online shop in good time.

Please contact us if you have questions about the screws and bolts by ARP. We´d be delighted to give you tips and tell you everything you need to know.

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