3″ X 9/16″ Utility Trailer Spring Bolt 3/8″ X 2 1/2″ Stainless Steel Carriage 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 5/8 x 4 1/2″ Stainless Steel Hex Bolt $4.95 Part #:3109 Add To Order Form 10 x 24 Brass Lock Nut $0.50 Part #:106 Add To Order Form 1/2″ x 1 1/2″ Stainless Steel Hex Bolt $1.95 Part #:172 Add To Order Form 1/2″ Galvanized Wedge Washer $1.95 Part #:108 Add To Order Form