Southco D4 DZUS® Standard-Line Quarter-Turn Fasteners provide reliable, quick-access fastening solutions for a wide range of industrial applications. Designed for panels and enclosures that require frequent removal, these quarter-turn fasteners deliver secure engagement with minimal effort, making them ideal for equipment access doors, covers, and service panels.

The D4 series includes a comprehensive offering of quarter-turn studs, mounted receptacles, and related accessories to support various mounting configurations. Engineered for vibration resistance, these fasteners maintain secure panel retention in demanding environments while remaining simple to install. A captive stud option helps prevent lost hardware, improving maintenance efficiency and reducing downtime.

Built for high strength and economical performance, D4 DZUS® fasteners are well-suited for applications that demand dependable fastening without complex installation. Matching receptacles ensure accurate alignment and consistent engagement, making them a practical solution for OEMs and maintenance teams seeking durable, repeatable panel fastening systems.