SKU: ARPAP5.250-1LB
MPN: AP5.250-1LB
The ARP 7/16 Stud – 5.250 Long Broached w/1.000 Thread is a precision-engineered fastener designed for high-performance engine assembly and critical mechanical applications where reliable clamping force and consistent bolt preload are non-negotiable. Manufactured from chromoly steel and finished in black oxide, this broached stud delivers the durability and corrosion resistance demanded in demanding automotive, powersports, and industrial environments.
This 5.25-inch stud features a 7/16-inch diameter with a 1.000-inch threaded section, making it compatible with standard 7/16-14 and 7/16-20 thread specifications. The broached design ensures precise alignment and eliminates tolerance stack-up during assembly, critical for applications where vibration resistance and joint integrity matter. Chromoly construction provides superior strength-to-weight characteristics compared to standard steel, while the black oxide coating offers enhanced corrosion protection in harsh conditions—from engine bays exposed to salt spray to high-temperature exhaust manifold environments.
Professionals building high-output engines, restoring classic vehicles, or assembling systems subject to thermal cycling and vibration specify ARP fasteners for their engineering precision. Individual studs like this one are ideal for replacement, repair, or custom builds where OEM hardware falls short. Whether replacing a damaged stud in a cylinder head, block, or manifold assembly, this broached fastener maintains the preload consistency that prevents gasket leakage, reduces fatigue failure, and extends component life.
ARP has built its reputation on fastener engineering that goes beyond commodity hardware. This stud exemplifies that commitment—every dimension, material choice, and finish specification is optimized for performance-critical environments where standard bolts simply won't suffice. At just 0.21 pounds, it integrates seamlessly into compact engine bays and tight assembly spaces.
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