1/2″ Stainless Steel Lock Nut (A) 3/8″ X (B) 3 1/8″ X (C) 4 1/2″ Stainless Steel has been added to your order form. Checkout View Order Form $0.95 1/2" Stainless Steel Lock Nut quantity Add To Order Form SKU: 170 Categories: Bolt & U Bolt Fasteners, Nuts, Stainless Related products 3″ X 9/16″ Utility Trailer Spring Bolt $3.95 Part #:1574 Spring Bolt For Utility Trailers. Add To Order Form 1/2″ Galvanized Washer $0.25 Part #:109 Add To Order Form 1/2″ x 4″ Stainless Steel Hex Bolt $4.50 Part #:178 Add To Order Form 1/2″ Stainless Steel Washer $0.50 Part #:168 Add To Order Form