Heavy Duty Boat Trailer Spring Shackles 2 3/4 Inch Center To Center Fits 9/16 Inch Shackle Bolts Zinc Plated Steel 2 Pack Natural Finish Built For Saltwater Use With Corrosion Resistant Zinc Plating And Rugged Marine Grade Reliability

Heavy Duty Boat Trailer Shackles, 2 Pack, 2.75 in Center
✔️ Center-to-center 2.75 in (70 mm), fits 9/16 in shackle bolts

These heavy-duty spring shackles connect a double-eye leaf spring to the rear hanger or equalizer on boat trailer suspensions. They’re built for saltwater use and deliver rugged marine-grade reliability.

✅ Center-to-center: 2.75 in (70 mm) and punched for 9/16 in splined shackle bolts
✅ 1/4 in thick zinc-plated steel for strength and corrosion resistance
✅ Measures 4-1/8 in long x 1-1/4 in wide (105 mm x 32 mm)
✅ Sold in pairs, natural finish, marine-grade hardware

💡 What is a boat trailer spring shackle used for and why does zinc plating matter in saltwater environments?

Saltwater use demands corrosion resistance and durability; zinc plating helps. Handy notes:

- Provides robust attachment for leaf springs to hangers and equalizers - Zinc plating protects against rust in marine environments - Compatible with 9/16 in shackle bolts for secure mounting✝️