3″ X 9/16″ Utility Trailer Spring Bolt 1/2″ x 4 1/2″ Stainless Steel Hex Bolt has been added to your order form. Checkout View Order Form $3.95 Spring Bolt For Utility Trailers. 3" X 9/16" Utility Trailer Spring Bolt quantity Add To Order Form SKU: 1574 Categories: Bolt & U Bolt Fasteners, Bolts, Double Eye, Springs Commonly Used For Utility Trailer Spring Bolt. Use Part #1577 If You Need The Equalizer Bolt On A Utility Trailer. Add Part #2772 For The 9/16" Crush Lock Nut. Related products 1/2″ x 3 1/4″ Stainless Steel Hex Bolt $3.95 Part #:176 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 1/2″ x 4 1/2″ Stainless Steel Hex Bolt $4.50 Part #:177 Add To Order Form 3/8″ Stainless Steel Lock Nut $0.50 Part #:195 Add To Order Form