SKU: ARP621-4500
UPC: 672036019761
MPN: 621-4500
The ARP S/S Bolt Kit - 6pt. (5) 1/4-20 x 4.500 delivers premium fastening solutions for builders, machinists, and motorsports enthusiasts who demand reliability under stress. This five-piece stainless steel bolt set is engineered for critical applications where standard fasteners fall short, offering superior corrosion resistance and tensile strength. Whether you're assembling high-performance engine components, securing chassis mounts, or executing precision fabrication work, these bolts provide the durability and consistency that professionals trust.
Each bolt in this kit features a 1/4-20 thread specification with a 4.5-inch length and a 5/16-inch hex head, designed to mate with standard wrenches and sockets for rapid installation and maintenance. The polished stainless steel construction resists oxidation and rust in harsh environments, from salt spray exposure to high-heat engine bays, while maintaining its finish over extended service life. The 6-point hex head geometry distributes load more evenly than 12-point alternatives, reducing the risk of fastener rounding and ensuring secure grip even during repeated tightening cycles.
This bolt kit is ideal for universal mounting applications across automotive, marine, and industrial sectors where corrosion resistance and consistent clamping force are non-negotiable. The set of five provides practical redundancy for prototype builds or component upgrades, with the 4.5-inch length accommodating most standard through-bolt scenarios without requiring washers or spacers in typical assemblies. Machinists and fabricators appreciate the polished finish for both aesthetic appeal and functional corrosion protection, making these bolts suitable for visible fastening work on show-quality builds alongside demanding mechanical applications.
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