The 505 Mild Steel Narrow Butt Hinge features an uncranked knuckle and a fixed pin design, offering a clean, low-profile solution for narrow-framed or lightweight doors. Constructed from durable mild steel, this hinge ensures smooth operation and long-lasting performance. The fixed pin enhances security and stability, making it suitable for cabinets, utility enclosures, and interior wood or metal doors with limited hinge space.