S/S Bolt Kit - 6pt. (5) 1/4-20 x 4.000

The ARP Stainless Steel Bolt Kit – 6-point, 1/4-20 x 4.000 (SKU ARP621-4000) delivers five precision-manufactured fasteners engineered for critical fastening applications where corrosion resistance and reliability are non-negotiable. Each bolt in this set features a polished stainless steel construction with a 5/16-inch hex head, 1/4-20 thread pitch, and 4-inch length—specifications that make this kit suitable for marine environments, outdoor equipment assembly, and restoration work where standard carbon steel fasteners would fail under corrosive conditions.

The 6-point hex head design provides superior grip and reduced fastener rounding compared to 12-point alternatives, a consideration that matters when working with hand tools in field or workshop conditions. The polished stainless steel finish resists salt spray, moisture, and oxidation—critical in coastal, maritime, and high-humidity environments where standard fasteners degrade rapidly. A 1/4-20 thread pitch is universal across industrial and commercial applications, ensuring compatibility with standard threaded holes across countless equipment platforms. The 4-inch length accommodates through-bolt applications and deep-threaded assemblies common in equipment mounting and structural fastening.

This five-bolt kit serves maintenance crews, equipment technicians, and operators who need reliable fasteners for outdoor gear, vehicle recovery equipment, marine hardware, and field-serviceable assemblies. The universal sizing and corrosion-resistant material eliminate the need for stainless replacement fasteners sourced piecemeal. Whether securing deck hardware, assembling field repairs, or maintaining equipment in harsh environments, stainless steel bolts prevent galvanic corrosion and thread seizing—ensuring fasteners can be safely removed and replaced during future maintenance cycles.

Stainless steel fasteners are industry standard for applications exposed to moisture and salt air, offering superior longevity compared to plated or zinc-finished alternatives. The 5/16-inch hex head accepts standard metric and imperial sockets and wrenches, keeping tool requirements simple and field-practical. ARP's manufacturing tolerances ensure consistent thread engagement and hex head fit across all five bolts in the kit.