This replacement raw steel weld on center spring hanger is perfect for utility trailers or enclosed trailers. The hanger is used on tandem axle trailers, so you can attach your equalizer bar in the center of your spring setup. The equalizer bars that are used with this hanger measure approximately 1 ¾” wide. The hole size is for a 9/16" diameter spring bolt. The dimensions of this hanger are 3”long and 4 1/4" tall, with an inside measurement of 1 7/8”.