R5102-90K Stainless Steel Spring Toggle Latch with Padlock Hole, SUS201

NRH R5102-90K Spring Assisted Toggle Latch - Padlock Hole, Stainless Steel, 35kg Load, Industrial Security

The NRH R5102-90K is a heavy‑duty toggle latch that combines spring‑assisted operation with physical security. Manufactured from SUS201 stainless steel with a uniform vibratory finishing, it offers excellent strength, good corrosion resistance, and a smooth, burr‑free surface. The integrated spring mechanism ensures smooth, low‑effort engagement and release with positive tactile feedback. The over‑center locking design delivers a powerful 343N (35kg) tensile load for tight, vibration‑resistant closure. The integrated padlock hole on the hook allows a standard padlock to be added, upgrading security from “fastened” to “locked” against unauthorized access. Weighing only 53g and with a compact overall height of 90.7mm and mounting plate width of 38.8mm, it is ideal for industrial cabinets, machinery guards, and outdoor enclosures that require frequent access and high security. Clear “NRH” branding ensures authenticity and quality.

As a product of NRH Box Hardware (specialist since 1996), this latch is manufactured under an ISO 9001 certified system. Regarding international compliance (ISO 9001, SGS, REACH, RoHS, SVHC, CNAS), these standards can be supported based on customer requirements - contact us for details. OEM/ODM services are available for custom hole patterns, lever lengths, or logo engraving. Full 2D/3D CAD models available upon request.

Key dimensions: overall height 90.7mm, mounting plate width 38.8mm, mounting plate length 27.5mm, hook span 42.8mm, material thickness 1.1mm, with 4×Φ5.3mm mounting holes. Refer to the engineering drawing for complete dimensional data.

Why Spring Assist + Padlock Security?

SUS201 stainless steel provides a cost‑effective balance of corrosion resistance and mechanical strength. The vibratory finishing uniformly deburrs edges, creating a smooth, satin surface that is safe to handle. The integrated spring assist offers two key benefits:

• Smoother operation - reduces effort for daily access, especially beneficial for high‑cycle applications
• Positive feedback - users feel a crisp “snap” when fully engaged, confirming secure lock

The integrated padlock hole is a critical security upgrade:

• Physical theft deterrence - a padlock prevents the latch from being opened without a key
• LOTO compliance - allows padlock to be added for Lockout/Tagout procedures during maintenance
• Tamper evidence - security seals or wire ties can be used for audit trails

Primary Applications - High Security & High Frequency

• High‑value industrial cabinets - server racks, network cabinets, power distribution units - lock to prevent unauthorized access
• Machinery safety guards & access hatches - spring assist eases frequent access; padlock hole supports LOTO
• Outdoor infrastructure & communication cabinets - base stations, utility boxes - padlock provides theft deterrence
• Professional tool & material storage - heavy‑duty tool chests, maintenance parts bins - easy operation with security

How It Works - Spring‑Assisted Over‑Center Toggle with Padlock Hole

The latch operates on a classic over‑center toggle mechanism enhanced by an internal spring. When you push the lever down, the spring helps draw the hook past its mechanical center point, creating a self‑locking hold that resists vibration and accidental opening. The 35kg (343N) clamping force pulls the two surfaces tightly together for a rattle‑free seal. To release, lift the lever; the spring again provides smooth, controlled motion. To add security, insert a standard padlock through the padlock hole on the hook. The shackle physically prevents the hook from being lifted, making unauthorized opening impossible without cutting the lock.

Key Advantages

• Spring‑assisted operation - smooth, low‑effort open/close with crisp tactile feedback
• Padlock‑ready security - integrated hole accepts standard padlocks for theft deterrence and LOTO
• 35kg (343N) holding force - reliable for medium‑heavy doors, lids, and panels
• Stainless steel with vibratory finish - corrosion resistant, durable, satin appearance
• Compact, robust dimensions - 90.7mm height, 38.8mm width, 53g weight
• Tool‑free, one‑handed operation - quick access, no special tools needed
• Precision mounting - 4×Φ5.3mm holes with 1.1mm material thickness
• OEM/ODM ready - custom hole sizes, lever shapes, logo engraving available

Technical Specifications

• Brand: NRH Box Hardware
• Model Number: R5102-90K
• Product Name: Toggle Latch (Spring Assisted, Lockable)
• Material: SUS201 Stainless Steel
• Finish: Vibratory Finishing
• Security Feature: Integrated Padlock Hole (circular)
• Net Weight: 53g
• Tensile Load: 343N (35kg)
• Key Dimensions: Overall Height 90.7mm, Mounting Plate Width 38.8mm, Mounting Plate Length 27.5mm, Hook Span 42.8mm, Material Thickness 1.1mm, Mounting Holes 4×Φ5.3mm (refer to engineering drawing)
• Compliance: ISO 9001, SGS, REACH, RoHS, SVHC, CNAS (available upon request - contact us for details)
• Note: Data for reference only. Manufacturer Since 1996. OEM/ODM Services Available. 2D/3D CAD on request.

Why Trust NRH

NRH Box Hardware has been designing and manufacturing industrial latches, hinges, and handles since 1996. The R5102-90K is produced under ISO 9001 certified quality control with full batch traceability. Its spring‑assisted mechanism and padlock‑ready design are tested for thousands of cycles to ensure reliable performance in industrial, telecom, and outdoor applications. For a smooth‑operating, lockable toggle latch that delivers both convenience and security, NRH delivers proven quality.