9/16″ Crush Lock Nut $0.95 Most Commonly Used With Utility Trailer Spring And Utility Trailer Center Equalizer Bolts. 9/16" Crush Lock Nut quantity Add To Order Form SKU: 2772 Categories: Double Eye, Springs Most Commonly Used With Utility Trailer Spring And Utility Trailer Equalizer Bolts. Related products 5 Leaf 25 1/4″ Double Eye Spring $48.95 Part #:1615 Marine Coated. 2950lb Rated Per Spring. Click Here For Better Picture. Add To Order Form 3 Leaf 26″ Hook Spring $41.95 Part #:1614 Marine Coated. 1750lb Rated Per Spring. Click Here For Better Picture. Add To Order Form 3 Leaf 25 1/4″ Double Eye Spring $37.95 Part #:1617 Marine Coated. 1750lb Rated Per Spring. Click Here For Better Picture. Add To Order Form 3 1/2″ X 9/16″ Utility Trailer Equalizer Bolt $3.95 Part #:1577 Middle Bolt For Utility Trailer Equalizer. Add To Order Form