NRH 8403-25 Micro Stainless Steel Hinge | SUS 304 4kg Load for Small Enclosures

NRH 8403-25 Ultra Compact Stainless Steel Butt Hinge - SUS 304, Vibratory Finish, 4kg Load

The NRH 8403-25 is an ultra‑compact stainless steel butt hinge engineered for applications where minimizing size and weight is critical without sacrificing performance. Meticulously manufactured from SUS 304 stainless steel with a smooth vibratory finishing, this micro hinge delivers reliable corrosion resistance, durability, and a clean aesthetic in a minimal footprint. Weighing only 6g and supporting a 49N (4kg) bearing load, it is the perfect solution for lightweight doors, lids, and access panels on precision equipment and compact enclosures.

The hinge measures 25mm in length and 20mm in width, with 4x Ø3.4mm through‑holes for accurate and secure screw installation. Its all‑stainless construction ensures consistent operation and long‑term resistance to environmental factors.

The NRH 8403-25 is a hallmark of NRH Box Hardware quality - a trusted manufacturer since 1996. It is produced under an ISO 9001:2000 certified quality management system. Regarding international compliance (SGS, REACH, RoHS, SVHC), these standards can be supported based on customer requirements and applicable costs - please contact us for specific certification needs. OEM and ODM services are available for tailored solutions.

Typical Applications - Space‑Constrained & Weight‑Sensitive

• Precision instrument cases: Housings for sensors, portable gauges, medical devices, and laboratory instruments
• Electronics and control panels: Access covers on compact control modules, terminal boxes, communication device casings
• Model making and prototyping: Enclosures for drones, RC models, and technical prototypes requiring tiny, durable hardware
• Light‑duty cabinetry: Small doors or lids on jewelry boxes, display cases, and specialized storage containers

How It Works - Operating Principle

Operating on a fundamental pivot principle, this hinge consists of two interlocking leaves joined by a central pin. One leaf mounts to the moving panel, the other to the fixed frame. The pin provides the axis for a smooth, precise rotational movement, enabling secure opening and closing. The all‑SUS 304 stainless steel construction guarantees consistent operation and long‑term resistance to rust and tarnish.

Key Features & Benefits

• Ultra‑compact & lightweight: Just 25mm x 20mm overall and only 6g - ideal for miniaturized designs
• Corrosion‑resistant SUS 304: Grade 304 stainless steel ensures excellent resistance to rust and tarnish
• Durable vibratory finish: Provides a uniform, fine satin surface that is both attractive and functional
• Optimized strength: Engineered to bear a 4kg load, offering dependable support for lightweight panels
• Precision mounting: 4x Ø3.4mm through‑holes for accurate and straightforward screw installation

Quality & Compliance - Why Trust NRH

NRH Box Hardware has been manufacturing industrial hinges and hardware since 1996. The NRH 8403-25 is made under an ISO 9001:2000 certified system. Compliance with SGS, REACH, RoHS, or SVHC is available upon request - please inquire for feasibility and pricing. Our long‑standing expertise in precision hardware ensures a reliable product for critical applications.