April 17, 2015 Online Store No Comments +3 Spring Mount Plate 212712 C$32.76 In stock Quantity: 1 Add to Bag Product Details Brand: Welder Series MPN: 21271 Thickness: 3/8" 4-1/4" x 3-1/4" x 3/8" thick. Available for 1-3/4" and 2" wide springs. Four holes, 3/8″ diameter on 3-3/8″ x 2-1/4″ centers. The center hole is 7/16″ diameter. Save this product for later Favorite