Watertight - Styled Lid - ABS Plastic 6.3 x 3.5 x 3.5 Key Features: Ideally suited for mounting printed circuit boards or DIN rail mounted components (see photo features below for details). "Styled" lid version has three main advantages over our flat lid (1554 series) - also see photo features below: smooth recessed surface on lid for a membrane keypad or label standoffs molded in the interior of the lid (except for 1555BGY) - designed for #6 self tapping screws more modern "styled" look vs. our traditonal flat lid (1554 series) Material - General purpose ABS plastic (material carries a UL flammability rating of UL94 HB). Not recommended for outdoor use (please see our polycarbonate 1555 series). Color is a light gray (RAL 7035). Gasketed lid with two piece "tongue & groove" construction provides protection against access of oil, dust and water. Gasket is factory poured using high temperature U.L. listed - silicone rubber gasket material. Designed to meet IP 66 & NEMA 4, 4X, 12 & 13 ratings. Lid is secured with self captivating - M4 stainless steel machine screws (included), threaded into integral stainless steel bushings (for repetitive assembly & disassembly). All stainless steel hardware to avoid corrosion caused by dissimilar metals