NRH 5104-56K Heavy Duty Draw Latch | Industrial Cabinet Latch

NRH 5104-56K Heavy Duty Draw Latch - SPCC Steel, Chrome Plating, 73kg Load, Industrial Cabinet Latch

The NRH 5104-56K is a heavy‑duty draw latch specifically designed for demanding industrial and commercial applications requiring reliable, durable closure solutions. Manufactured from SPCC steel with a bright chrome plating finish, this latch offers excellent corrosion resistance, wear protection, and a professional appearance. The efficient over‑center cam mechanism provides powerful locking force - when the lever is engaged, the internal cam rotates and pulls the strike plate, tightly drawing the door panel toward the frame. With a net weight of only 21g and an impressive 720N (73kg) tensile load, it delivers exceptional strength in a lightweight package. Clear “NRH” branding ensures traceability and quality assurance.

As a product of NRH Box Hardware (established since 1996), this latch is manufactured under a certified quality management system. Regarding international compliance (ISO 9001, 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 custom hole patterns, lever shapes, logo engraving, or alternative finishes. Detailed 2D engineering drawings and 3D CAD models are provided upon request.

Key dimensions: overall height approx. 70mm, lever length 56.5mm, width 25.5mm, mounting holes 4×Φ4mm. Refer to the engineering drawing for complete dimension details.

Why Chrome-Plated SPCC Steel?

SPCC steel (cold‑rolled carbon steel) offers excellent formability, strength, and cost‑effectiveness. The chrome plating process deposits a thin layer of chromium onto the steel surface, providing several critical advantages:

• Superior corrosion resistance - protects against rust, moisture, and mild chemicals, ideal for indoor and sheltered outdoor applications
• Hardness and wear resistance - chrome reaches 800-1000 HV, significantly harder than bare steel, resisting scratches and repeated cycling wear
• Low friction, smooth operation - the shiny surface reduces friction at pivot points, ensuring consistent lever action over thousands of cycles
• Professional aesthetic - mirror‑like finish matches other chrome‑plated hardware on industrial equipment, toolboxes, and electronics enclosures

For extreme environments (marine, chemical, food processing), we recommend our SUS304 stainless steel variants with vibratory or electropolished finishes.

Primary Applications - Demanding Industrial & Commercial Environments

This heavy‑duty draw latch is ideal for:

• Industrial cabinets and control panels: Server racks, network cabinets, PLC control cabinets, distribution boxes
• Tool and equipment storage: Metal toolboxes, tool carts, instrument cases, flight cases, military equipment boxes
• Vehicles and transportation: Truck toolboxes, utility vehicle storage compartments, marine equipment boxes
• Specialized furniture and outdoor enclosures: Industrial storage cabinets, communication boxes, outdoor electronic equipment enclosures

How It Works - Over‑Center Cam Mechanism

This heavy‑duty draw latch features an efficient over‑center cam mechanism. When the lever (56.5mm long arm for effortless operation) is engaged, the internal cam rotates and pulls the strike plate or latch bolt, tightly drawing the door panel toward the frame to create powerful locking force. This design provides smooth, one‑handed operation and maintains continuous tension when closed, effectively preventing accidental opening due to vibration and ensuring a secure, rattle‑free seal. To release, simply lift the lever - the cam disengages and the tension is released.

Features & Technical Benefits

• High‑strength SPCC construction: Robust steel body ensures overall sturdiness and durability under heavy use
• Corrosion‑resistant chrome plating: Provides excellent rust and wear resistance with a professional, bright appearance
• Exceptional load capacity: Withstands tensile load up to 720N (73kg) - suitable for demanding conditions where other latches fail
• Lightweight design: Net weight only 21g, achieving excellent strength‑to‑weight ratio
• Precise dimensions and easy installation: Overall height 70mm, width 25.5mm, 4×Φ4mm mounting holes for accurate and secure installation
• Effortless operation: 56.5mm lever arm provides mechanical advantage for smooth one‑handed use
• OEM/ODM flexibility: Custom hole patterns, lever lengths, logo engraving, or alternative finishes available

Technical Specifications (Based on Product Image)

• Brand: NRH Box Hardware
• Model Number: 5104-56K
• Product Name: Heavy Duty Draw Latch / Toggle Latch
• Material: SPCC Steel
• Finish: Chrome Plating
• Net Weight: 21g
• Tensile Load: 720N (73kg)
• Key Dimensions: Overall Height: approx. 70mm, Lever Length: 56.5mm, Width: 25.5mm, Mounting Holes: 4×Φ4mm (refer to engineering drawing for complete details)
• Compliance: ISO 9001, SGS, REACH, RoHS, SVHC (available upon request - contact us for details)
• Note: Data for reference only, not for mold making. Manufacturer Since 1996. OEM/ODM Services Available. 2D drawings and 3D CAD models on request.

Why Trust NRH

NRH Box Hardware has been designing and manufacturing industrial latches, hinges, and handles since 1996. Our heavy‑duty draw latches are trusted globally for their quality, reliability, and performance in demanding environments - from industrial automation to military transport cases. The NRH 5104-56K is produced under an ISO 9001 certified quality management system with full batch traceability. Compliance with REACH, RoHS, and SVHC is available upon request. For engineers seeking a high‑strength, corrosion‑resistant, lightweight draw latch, the NRH 5104-56K delivers exceptional value.