Carr Lane CLM-10-R-CBPR | 10mm Diameter Steel Black Oxide Coated Reversible Construction Ball PadReversible Construction Ball Pad Metric Reversible round pad for mounting a Construction Ball. This precision reversible round pad can be flipped over in order to mirror a fixture. These round pads should be fastened with two ultra low profile socket head cap screws, then doweled in place to maintain accurate location. The Construction Ball can be secured by installing a m5 setscrew (not furnished) in the crosshole. Material Steel Material Heat Treat