Tow Rite RT3152 9/16in x 3in Trailer Leaf Spring Shackle Bolt Black

The Tow Rite RT3152 is a 9/16" x 3" trailer leaf spring bolt — also known as a shackle bolt or spring eye bolt — used in trailer suspension systems to secure leaf springs to spring hangers and shackle assemblies. This is a direct-fit replacement fastener compatible with a wide range of trailer suspension configurations.

Key Features:

• 9/16" diameter shank with 18 threads per inch (9/16"-18 thread pitch)
• 3" overall length sized for mounting 1-3/4" wide leaf springs
• Black finish for enhanced corrosion resistance
• Functions as both a spring eye bolt and a trailer shackle bolt
• Hard steel construction for heavy-duty load-bearing performance
• Commonly paired with RT3166 9/16"-18 lock nut (sold separately)

The RT3152 spring bolt is an essential suspension component for boat trailers, utility trailers, cargo trailers, and other towed equipment. Its standard sizing makes it a versatile replacement for worn or damaged spring hardware, helping maintain proper suspension geometry and safe towing performance.