C.R. LAURENCE DRH1PN CRL Polished Nickel Designer Robe Hook. This CRL Solid brass Designer Robe Hook is available in our four most popular finishes. Adjusts for through-glass mounting on 5/16 to 1/2 inch (8 to 12 millimeter) glass. May also be adhered to glass with UV adhesive to avoid drilling, or mounted to wall with supplied Hanger Bolt. Clear gaskets included.. Part Numbers Variations: DRH1PN