NRH 5806G-S-KH Square Safety Toggle Latch – Mild Steel Black Painted Economical

NRH 5806G-S-KH Square Safety Toggle Latch - Mild Steel Black Painted, Economical Security, 35kg Load

For aviation cases, power supply boxes, and industrial machinery requiring accidental opening prevention at a lower cost, all‑stainless steel models may exceed budget. The NRH 5806G-S-KH is a square safety toggle latch with secondary lock - suffix "S" indicates secondary safety lock, "KH" indicates black painted finish. Made from mild steel with a black painting finish, it offers good rust resistance, a matte non‑reflective surface, and cost‑effectiveness. An independent secondary safety lock physically prevents accidental opening due to vibration or unintended contact. Weighing just 33g with a 35kg load capacity, it is lightweight yet durable. Mounting holes are 2×Φ4mm for simple surface mounting. Widely used on aviation cases, heavy‑duty luggage, firefighting cases, trunks, import/export wooden crates, machinery, instruments, marine equipment, medical boxes, power supply enclosures, and filters. Clear NRH branding and heritage since 1996 assure quality.

Manufactured under ISO 9001. REACH, RoHS compliance available on request. OEM/ODM modifications (finish, logo) welcome. 2D/3D CAD drawings supplied.

Key dimensions (see drawing): mounting holes 2×Φ4mm. Refer to engineering drawing for other dimensions.

1. Square Design & Material Advantages

1.1 Square-Type Appearance & Low Profile
The square-type design allows installation in tight spaces, making it suitable for aviation cases, power supply boxes, and control cabinets. The square shape provides even force distribution during opening/closing.

1.2 Mild Steel + Black Painting
Made from high‑quality mild steel stamping, offering sufficient strength and impact resistance. The black painted finish (with phosphate pretreatment) provides good adhesion and weather resistance, effectively preventing rust. The matte black surface is non‑reflective, dirt‑resistant, and matches dark‑colored equipment. Compared to stainless steel, this carbon steel version is more cost‑effective for high‑volume budget projects.

2. Secondary Safety Lock Mechanism

The suffix "S" indicates an independent secondary safety lock that prevents accidental opening:

• Over‑center primary lock: Press the handle past dead center - the mechanism self‑locks, generating constant clamping force that resists vibration.
• Safety lock automatic engagement: When the main handle is fully closed, a spring‑loaded safety lock tab snaps into a groove on the handle, physically blocking it from lifting.
• Manual release to open: To open, the user must first slide or press the safety lock release, then lift the main handle - a deliberate action that prevents accidental opening by children or untrained personnel.

This dual‑safety design makes the NRH 5806G-S-KH ideal for cost‑sensitive applications requiring anti‑accidental protection.

3. Applications & Industry Examples

• Aviation flight cases / road cases - Over‑center self‑locking ensures lids stay closed under vibration; safety lock prevents accidental opening by handlers.
• Power supply boxes / electrical enclosures - Prevents accidental opening by children or untrained personnel.
• Firefighting cases / emergency response boxes - Safety lock prevents accidental pop‑open that could scatter emergency supplies.
• Heavy‑duty luggage / industrial equipment cases - 35kg load capacity handles heavy toolboxes and generator enclosures.
• Machinery guards / access doors - Over‑center lock resists vibration; safety lock ensures guards cannot be opened accidentally during operation.
• Instrument cases / laboratory equipment - Matte black finish is non‑reflective, suitable for lab environments.
• Marine equipment boxes - Black painted finish provides basic corrosion protection for coastal use.
• Import/export wooden crates - Easy open/close for customs inspection; safety lock prevents accidental pop‑open during transit.

4. Installation & Maintenance

• Mounting: Drill holes per drawing. Use M4 screws through 2×Φ4mm holes; add washers inside the panel.
• Adjustment: Test open/close several times after installation. The over‑center snap should be crisp, and the safety lock should engage automatically.
• Maintenance: Periodically inspect for rust or deformation. If the black coating is scratched, touch up with anti‑rust paint. Lubricate pivot points lightly.
• Emergency release: If the safety lock jams, use a small screwdriver to pry the release tab while lifting the handle.

5. Technical Specifications

• Brand/Model: NRH 5806G-S-KH (with secondary safety lock)
• Type: Square Safety Toggle Latch / Draw Latch
• Material: Mild Steel
• Finish: Black Painting
• Weight: 33g
• Load Capacity: 35kg
• Mounting Holes: 2×Φ4mm (surface mount)
• Safety Feature: Independent secondary lock (auto‑engage, manual slide release)
• Operating Temperature: -20°C to +80°C
• Compliance: ISO 9001 / REACH / RoHS (on request)
• Note: Drawings for reference. NRH manufacturing since 1996. OEM/ODM welcome.

6. Why Choose NRH 5806G-S-KH Economical Safety Latch?

• Cost‑effective - Mild steel black painted finish offers good rust protection at a lower price than stainless steel.
• Dual safety - Over‑center self‑lock + independent secondary lock - no accidental opening.
• Square compact appearance - Low‑profile, space‑saving design.
• Matte black surface - Non‑reflective, dirt‑resistant, matches dark equipment.
• Easy operation - One‑handed closing with automatic safety lock; simple release.
• Proven reliability - Decades of industrial use.

If you need an economical, reliable, safety‑lock square toggle latch for aviation cases, power supply boxes, or industrial machinery, the NRH 5806G-S-KH is a proven solution. Contact NRH sales for samples, 2D/3D CAD files, or technical support.