ARP Extended Wheel Studs 5 Pack (100-7716) | Subaru WRX 2002-2021 / STI 2004-2021

The ARP Extended Wheel Studs 5 Pack (100-7716) is engineered to provide superior strength, reliability, and wheel retention for Subaru WRX 2002–2021 and STI 2004–2021 applications. Manufactured from premium 8740 chrome-moly steel and heat treated for exceptional tensile strength, these studs are designed to withstand the increased loads and forces encountered in spirited street driving, autocross, and track use, while offering the extra length needed for thicker-center performance wheels.

KEY FEATURES

• Premium 8740 chrome-moly steel construction for high tensile strength and durability
• Extended length design provides additional thread engagement for aftermarket wheels and spacers
• Cadmium plated finish resists corrosion for long-term reliability
• Pack of 5 studs — one set per wheel
• Precision-formed knurl and thread ensure secure, repeatable fitment

TECHNICAL SPECIFICATIONS

• Part Number: 100-7716
• Stud Material: Heat-treated 8740 chrome-moly steel
• Tensile Strength: Extremely high strength for performance applications
• Thread Size / Pitch: M12 x 1.25
• Under-Head Length (UHL): 3.000 inches (extended from stock length)
• Knurl Diameter: 0.565 inches for secure hub retention
• Nose Length: 0.350 inches
• Finish: Cadmium plated for corrosion resistance

VEHICLE FITMENT

• Subaru WRX 2002–2021
• Subaru STI 2004–2021

PRODUCT NOTES

• This kit includes five extended wheel studs — one pack is required per wheel; four packs are recommended for a full vehicle set.
• Extended studs may require the use of open-ended lug nuts (sold separately) for proper clearance on some wheel designs.
• Installation requires removal of the factory studs; proper seating and torque of studs and lug nuts is critical for safety and performance.

ARP delivers precision-engineered, high-strength fasteners and hardware solutions trusted by professional builders, racers, and performance enthusiasts worldwide for uncompromising reliability, durability, and repeatable performance in demanding automotive and motorsports applications.