The CORE-BULK Stainless Steel Ball Bearing Hinge is a high-quality 100mm hinge that is CE13 rated, meaning it adheres to certain European standards for health, safety, and environmental protection policies. The “FD30/60” designation suggests that the hinge is suitable for use on fire doors offering a minimum of 30 to 60 minutes of fire protection. The hinge is constructed from durable stainless steel and features an electro brass finish that gives it a warm, golden hue. It includes two ball bearings (2BB), ensuring a smoother opening and closing action. The hinge measures approximately 101 mm x 76 mm and is presented with the manufacturer code 551SSBB, indicating its specific product identity.