6 x 15 mm Flat Head Screws CRL has a Full Range of Shower Door Replacement Screws Fit: Elite, Senior Prima, Senior Cardiff, Regal, Cologne, and Vienna Hinges Three Sizes in Up to 21 Finishes C.R. LAURENCE A615PN CRL Polished Nickel 6 mm x 15 mm Cover Plate Flat Allen Head Screws. CRL carries an extensive inventory of Replacement Screws for all of our Hinge Cover Plates. Three sizes of Screws are available: 5 x 12 mm, 6 x 12 mm, and 6 x 15 mm. Two styles of heads, Phillips or Allen, are offered to meet your needs. Conveniently packaged, these screws should be ordered and kept in inventory for those emergency situations where an immediate response is required..