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