R5101-105 SUS201 Stainless Steel Spring Toggle Latch, Heavy Duty Industrial Fastener

NRH R5101-105 Heavy Duty Toggle Latch - Stainless Steel, Vibratory Finish, 40kg Load, Industrial Grade

The NRH R5101-105 is a professional‑grade heavy‑duty industrial toggle latch designed for demanding applications requiring high load capacity and frequent operation. Manufactured from SUS201 stainless steel with a uniform vibratory finishing, it offers excellent strength, good corrosion resistance, and a smooth, burr‑free surface. The over‑center toggle mechanism, enhanced by an internal spring, provides smooth action and positive tactile feedback while delivering a powerful 392N (40kg) tensile load for tight, vibration‑resistant closure. Weighing 83g and with a compact overall length of 106mm and mounting plate width of 39mm, it is ideal for large industrial enclosures, machinery housings, and transport equipment. 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 length 106mm, mounting plate width 39mm, hook span 47.5mm, material thickness 1.4mm, with 4×Φ5mm mounting holes. Refer to the engineering drawing for complete dimensional data.

Why SUS201 Stainless Steel + Vibratory Finish?

SUS201 stainless steel provides a cost‑effective balance of corrosion resistance and mechanical strength, ideal for industrial cabinets, machinery guards, and outdoor enclosures. The vibratory finishing process uniformly deburrs edges, creating a smooth, satin surface that is safe to handle and easy to clean. The integrated spring assist offers several operational benefits:

• Smoother engagement - the spring helps the latch move cleanly into the locked position without binding
• Controlled release - prevents abrupt or jerky opening, reducing wear
• Consistent tactile feedback - users feel a crisp “snap” when fully engaged
• Reduced operator fatigue - spring assist lowers the force required for locking/unlocking

Primary Applications - Heavy Duty & Industrial

• Large industrial & electrical enclosures - power distribution cabinets, automation control cabinets, server racks
• Heavy machinery housings - access panels and guards on machine tools, generator sets, construction equipment
• Industrial transport & storage equipment - heavy freight containers, large equipment shipping crates
• Special vehicle & marine equipment boxes - communication vehicles, utility trucks, marine compartments

How It Works - Spring‑Assisted Over‑Center Toggle

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 the center point, creating a self‑locking hold that resists vibration and accidental opening. The 40kg (392N) 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, preventing sudden snap‑back. This design ensures positive engagement every time with minimal user effort, even after thousands of cycles.

Key Advantages

• 40kg (392N) holding force - powerful clamping for heavy doors, lids, and panels
• Spring‑assisted operation - smooth, controlled open/close with crisp tactile feedback
• Stainless steel construction with vibratory finish - corrosion resistant, durable, satin appearance
• Compact, robust dimensions - 106mm length, 39mm width, 83g weight - strong yet manageable
• Tool‑free operation - one‑handed open/close, no special tools needed
• Precision mounting - 4×Φ5mm holes with 1.4mm material thickness for secure installation
• OEM/ODM ready - custom hole sizes, lever shapes, logo engraving available

Technical Specifications

• Brand: NRH Box Hardware
• Model Number: R5101-105
• Product Name: Toggle Latch (Spring Assisted)
• Material: SUS201 Stainless Steel
• Finish: Vibratory Finishing
• Net Weight: 83g
• Tensile Load: 392N (40kg)
• Key Dimensions: Overall Length 106mm, Mounting Plate Width 39mm, Hook Span 47.5mm, Material Thickness 1.4mm, Mounting Holes 4×Φ5mm (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 R5101-105 is produced under ISO 9001 certified quality control with full batch traceability. Its spring‑assisted mechanism is tested for thousands of cycles to ensure reliable performance in heavy industrial environments. For a high‑strength, corrosion‑resistant toggle latch that delivers consistent holding power, NRH delivers proven quality.