NRH 4213-121 Heavy Duty Spring Handle | SUS 304 Stainless Steel 80kg Load Toolbox Handle

NRH 4213-121 Spring Handle - SUS 304 Stainless Steel, Vibratory Finish, Rubber Grip, 80kg Load, Auto Return

The NRH 4213-121 is an ultra‑heavy‑duty spring handle, a flagship product from NRH Box Hardware with a manufacturing heritage since 1996. Engineered for the most demanding transportation and industrial applications, it is constructed from premium SUS 304 stainless steel and finished with a durable, smooth vibratory finishing. The handle integrates a robust spring mechanism and a comfortable black rubber grip, ensuring a secure, non‑slip hold even under maximum load. It provides a reliable grip for carrying and automatically retracts to a flush, space‑saving position when released. With an exceptional 784N (80kg) tensile load and a solid net weight of 288g, it is built to secure and transport the heaviest equipment cases and cabinet doors. The product proudly carries the “NRH” brand stamp.

Regarding international compliance (ISO 9001:2000, SGS, REACH, SVHC, RoHS), 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.

Key dimensions include an overall height of 102.5mm, overall width of 134mm, overall length of 122.5mm, grip section of 33.5mm x 33.5mm, with 4x Ø5mm mounting holes on 108mm centers.

Primary Applications

• Ultra‑heavy duty flight and transport cases: Large ATA cases, road cases, and military transport boxes for broadcasting, aerospace, or sensitive high‑value equipment
• Industrial machinery and large tool chests: Enclosures for heavy machinery, oversized rolling tool chests, and integrated field service stations
• Heavy‑duty industrial and electrical cabinets: Large access doors on server racks, power distribution units, and control panels for industrial plants
• Specialized logistics and shipping containers: Custom protective cases and containers for heavy or delicate cargo

How It Works - Operating Principle

The handle operates on a heavy‑duty spring‑loaded mechanism. To use, pull the rubber‑gripped handle upward; it extends smoothly to a stable working angle, providing an ergonomic and powerful grip for lifting. To store, simply release the handle. The high‑tension internal spring automatically and firmly retracts it, folding the handle completely flat against the mounting surface. This ensures a safe, low‑profile, and impact‑resistant design crucial for transport and stacking.

Features & Specifications

• Ultra‑high load capacity: Rated for an exceptional 784N (80kg) tensile load, designed for the most challenging lifting tasks
• Premium SUS 304 construction: SUS 304 stainless steel offers unmatched corrosion resistance, strength, and hygiene for long‑term durability
• Professional vibratory finish: The vibratory finishing provides a uniform, satin surface that is easy to clean, resists scratches, and maintains a professional appearance
• Ergonomic rubber grip: Soft black rubber overlay ensures operator comfort, reduces hand fatigue, and provides a secure, non‑slip hold
• Automatic spring return: Retracts to a flush position automatically when released, maximizing space efficiency and preventing snags during transport
• Robust and secure mounting: Engineered with a wide base and 4x Ø5mm mounting holes on 108mm centers for an exceptionally strong and stable installation on heavy enclosures

Technical Specifications

• Brand: NRH Box Hardware
• Model Number: 4213-121
• Product Name: Spring Handle
• Primary Material: SUS 304 Stainless Steel
• Surface Finish: Vibratory Finishing
• Grip Material: Rubber (Black)
• Product Weight: 288g
• Tensile Load: 784N (80kg)
• Key Dimensions: Overall Height: 102.5mm, Overall Width: 134mm, Overall Length: 122.5mm, Grip Section: 33.5mm x 33.5mm, Mounting Holes: 4 x Ø5mm (on 108mm centers)
• Compliance: ISO 9001:2000, SGS, REACH, SVHC, RoHS (available upon request)
• Additional Info: Manufacturer Since 1996. OEM/ODM Services Available.

Why Trust NRH

NRH Box Hardware has been producing industrial spring handles since 1996. The NRH 4213-121 is made under a certified quality management system. Compliance with ISO, SGS, REACH, SVHC, or RoHS is available upon request - please inquire for feasibility and pricing. Our long‑standing expertise in stainless steel ultra‑heavy‑duty handles ensures a reliable, high‑strength solution for the most demanding transport and industrial applications.