4 rubber insulation elements with galvanized washer for structure-borne sound-decoupled ceiling mounting of the ventilation boxes ESR... according to DIN 4109. Additional fastening material such as threaded rods, nuts, etc. are not included in the scope of delivery. Article: KSD-D, material: thermoplastic elastomer (TPE), color: black, weight: 0.03 kg, weight with packaging: 0.04 kg, fire protection: fire class B2 according to DIN 4102, non-drip, width: 80 mm, height: 50 mm, depth: 50 mm, width with packaging: 80 mm, height with packaging: 30 mm, depth with packaging: 50 mm, thread: M8, ambient temperature: -50 °C to 110 °C