National Hardware 403188 Adjustable, Offset Dial Door Hanger, Steel

Steel, zinc-plated with thermoplastic dials and rollers. Finger-adjustable dial cam provides 5/16 in vertical adjustment to properly hang doors. Wheels are 7/8 in Dia x 1/4 in W. CD 40-3188 and CD 40-3192 must be used together. Fine tune dial provides up to 5/16 in precise alignment of door to jamb. Acetal wheels for silent smooth door operation.