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High Strength Stainless Fasteners For Builds That Cannot Afford A Failed Bolt
ARP612-2000 is a 5 pack of ARP stainless steel 12 point bolts sized 5/16 inch-18 thread by 2.000 inch length. ARP fasteners are used throughout engine, chassis, and suspension builds where a stock grade bolt is not strong enough for the loads involved.
Key Features
- 5/16 inch-18 thread by 2.000 inch overall length
- 12 point head design for a stronger grip with a standard 12 point socket
- Stainless steel construction resists corrosion
- Sold in a 5 piece package
- Made in the USA to ARP quality standards
Fitment
| Year Range | Make | Model |
|---|---|---|
| Universal | Any | Any application requiring 5/16-18 x 2.000 fasteners |
Specifications
| Detail | Value |
|---|---|
| Part Number | ARP612-2000 |
| Brand | ARP |
| Thread Size | 5/16 inch-18 |
| Length | 2.000 inch |
| Head Style | 12 point |
| Material | Stainless steel |
| Quantity | 5 pieces |
| UPC | Not published by manufacturer |
What's Included
- 5x ARP612-2000 stainless 12 point bolts
About ARP
ARP has manufactured premium fasteners in the USA since 1968, supplying engine builders and racers with bolts engineered to outlast the stock hardware they replace.
What is the ARP612-2000?
The ARP612-2000 is a 5 pack of stainless steel 12 point bolts measuring 5/16 inch-18 thread by 2.000 inch in length.
What head style does this bolt use?
It uses a 12 point head that requires a 12 point socket rather than a standard hex socket.
What material is this bolt made from?
ARP612-2000 is machined from stainless steel for corrosion resistance.
How many bolts come in this package?
Each package contains 5 bolts.
Where are these bolts manufactured?
ARP manufactures this fastener in the USA.
Can these bolts be used on engine applications?
Yes, ARP 12 point bolts in this size range are commonly used for engine, transmission, and chassis hardware.
Do these bolts require a special socket?
Yes, a 12 point socket is required to properly install and torque these bolts.
Are these bolts reusable?
ARP bolts can be reused within ARP torque and stretch specifications, but always inspect threads before reinstalling.
Install Instructions
- Clean and inspect all mating threads before installation
- Apply ARP fastener assembly lubricant to threads and under the bolt head
- Thread the bolt into place by hand until seated
- Torque to the specification required by the application using a 12 point socket
- Recheck torque after the first use cycle if used in a high vibration application
ARP
ARP (Automotive Racing Products) is the world’s premier manufacturer of high-strength engine and driveline fasteners—head studs and bolts, main studs, rod bolts, and more—engineered and manufactured in-house from start to finish for race-proven reliability. With vertically integrated processes that include cold heading, machining, heat-treating, thread rolling after heat treat, and rigorous QA, ARP maintains aerospace-level certifications (ISO 9001 and AS9100) and validates every part for repeatable clamp load and fatigue resistance. Signature alloys such as 8740 chromoly, ARP2000, L19, and Custom Age 625+ deliver ultimate tensile strengths up to the super-alloy range, while ARP Ultra-Torque fastener assembly lubricant helps achieve consistent pre-load during installation. From street performance builds to professional motorsport programs, ARP fasteners provide precise fitment, superior metallurgy, and the durability needed to keep engines together at elevated cylinder pressures and...
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