Bolt Kit - 12pt. (5) 7/16-20 x 1.750

The Bolt Kit - 12pt. (5) 7/16-20 x 1.750 from ARP delivers professional-grade fastening solutions purpose-built for high-performance engine builds, racing platforms, and demanding mechanical applications where reliability under extreme stress is non-negotiable. This five-piece kit is engineered for technicians, engine builders, and motorsports enthusiasts who demand fasteners capable of withstanding sustained load cycles and thermal cycling. ARP fasteners are recognized across law enforcement, military, and civilian tactical communities as OEM-quality components that eliminate failure points in critical assemblies.

Each bolt in this kit features a 12-point head design that distributes clamping force evenly across the fastening surface, reducing stress concentration and preventing galling during installation and removal cycles. The 7/16-20 thread specification delivers precise engagement with standard metric and imperial cross-over applications, while the 1.750-inch length accommodates medium-depth counterbore and through-hole configurations common in transmission housings, bell housings, and structural brace mounts. ARP's proprietary manufacturing process ensures dimensional consistency and superior tensile strength, critical factors when fasteners must maintain preload under vibration and sustained G-forces encountered in combat vehicles, racing engines, and tactical equipment platforms.

Operators, technicians, and builders rely on ARP bolt kits for engine reassembly following overhaul, custom weapon system integration, and vehicle drivetrain repair where OEM fasteners have reached fatigue limits. The 12-point head geometry works with both standard and metric socket sets, providing flexibility in field and shop environments where tool standardization matters. Proper preload using a calibrated torque wrench—paired with ARP's industry-leading surface treatments—ensures these fasteners remain secure through thousands of operating cycles, making this kit an essential addition to any serious builder's inventory for sale as a proven upgrade.