Clear polycarbonate thermoplastic cover 316 stainless steel hardware Padlock hasps (3/8") UV stabilized for outdoor use Formed polurethane gasket Open back frame design with an opening size of 14.49″ x 12.71" Designed for use with wall thicknesses ranging from 16 gauge through 1/4” #10-32 threaded brass inserts with plated steel mounting fasteners Gray (RAL 7035) with clear cover UL listed/recognized for NEMA Types 1, 3, 3R, 4, 4X, 12 or 13 enclosures Allied Moulded’s HMI cover kits are designed to provide protection for instruments or electronics requiring routine attention or detail and makes accessibility to electronic components easy! Well suited for indoor and outdoor applications.