Garage Door Openers descriptions We use high-quality raw materials, all materials are very suitable for the product, please rest assured to buy. Surface Mounted Low Temperature Electric Bolt Door Lock. Features: This Door Lock is Special in Designed with Durable Material. It Can Protect Your Home or Business Shops. Low Operational and Standby Current. It's Especially Suitable for Glass Doors. NC Mode - (locked While Supplied with Power), Fail Safe Mode. Aluminum Alloy Material. Testing to 1000000 Cycles. Low Temperature, Safe & Durable. Door Statue Signal Output Contact(NC/COM) . Specifications: Product Type: Low Temperature Electric Bolt Door Lock Suitable For: Wooden Door, Metal Door, Fireproof Door,etc Operating Mode: NC Fail Safe (close when Powered) Material: Aluminum Alloy Material Holding Force: 800KG Time: 0 / 3 / 6 Second Lock Core: The Diameter is 12.5mm Stainless Core, Extending the Length of 15mm Working Voltage: DC 12V Size: Approx. 149 (L) X 34 (W) X 27.5 (H) Mm / 5.9 (L) X 1.4 (W) X 1.1 (H) Inch Package Includes: 1 X Surface Mounted Low Temperature Electric Bolt Door Lock . Products number : SOMONO87456