NRH 6318-39 Chrome Plated Butterfly Latch Draw Latch Industrial Cabinet Latch

NRH 6318-39 Butterfly Latch - Chrome Plated, 25kg Load, Compact Draw Latch for Cases & Cabinets

The NRH 6318-39 is a compact, chrome‑plated butterfly latch (draw latch) designed for light to medium‑duty enclosures where reliable closure and corrosion resistance are needed. Manufactured from high‑strength steel with a bright chrome plating finish, it offers a professional mirror‑like appearance while resisting rust and wear. Weighing only 36g and with a compact footprint (approx. 38.8 × 31.5mm), it is ideal for small cases, instrument boxes, and cabinet doors. The latch delivers a solid 245N (approx. 25kg) tensile load - sufficient for most portable enclosures and access panels. Clear “NRH” branding ensures quality and traceability.

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

Key dimensions: overall length approx. 38.8mm, width 31.5mm, with 4×Φ4.2mm mounting holes. Refer to the engineering drawing for exact tolerances.

Why Chrome Plating?

Chrome plating deposits a thin layer of chromium onto the steel surface, providing several advantages for a butterfly latch:

• Corrosion resistance - protects against rust and moisture, suitable for indoor and sheltered outdoor use
• Hardness and wear resistance - chrome reaches 800-1000 HV, resisting scratches and repeated cycling
• Low friction - smooth surface ensures easy twisting operation of the butterfly wings
• Professional aesthetic - mirror‑like finish matches other chrome hardware on premium cases

Primary Applications - Compact and Versatile

• Instrument and test equipment cases - portable meters, calibration devices, laboratory analyzers
• Small toolboxes and parts organizers - hobbyist kits, electronics tool cases
• Aviation and flight accessories - headset cases, GPS units, small avionics boxes
• Wooden assembly boxes and gift boxes - display cases, jewelry boxes, collectible storage
• Outdoor utility enclosures - telecom junction boxes, weatherproof instrument shelters

How It Works - Twist Butterfly Lock

The latch features a simple twist‑lock mechanism. The butterfly‑shaped wings serve as the lever. To lock, place the latch over the strike plate and rotate the wings 90 degrees (or until they align with the base). The cam action pulls the two surfaces tightly together, creating a secure, rattle‑free closure. To open, twist the wings back to the release position. The chrome‑plated surface ensures smooth, consistent operation even after thousands of cycles.

Key Advantages

• 25kg (245N) holding force - reliable for medium‑duty lids, doors, and panels
• Chrome plated steel - bright, rust‑resistant, wear‑resistant, professional finish
• Ultra‑compact and lightweight - 36g, 38.8×31.5mm - fits small cases
• Easy twist operation - one‑motion locking and release, no tools required
• Precision mounting - 4×Φ4.2mm holes on standard pattern
• OEM/ODM ready - custom sizes, hole patterns, logo engraving available

Technical Specifications

• Brand: NRH Box Hardware
• Model Number: 6318-39
• Product Name: Butterfly Latch / Draw Latch / Twist Latch
• Material: High‑Strength Steel (SPCC)
• Surface Finish: Chrome Plating
• Net Weight: 36g
• Tensile Load: 245N (approx. 25kg)
• Key Dimensions: Overall Length: approx. 38.8mm, Width: 31.5mm, Mounting Holes: 4×Φ4.2mm (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 design. 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. Our butterfly latches are trusted globally for their reliability and finish quality. The 6318-39 is produced under ISO 9001 certified quality control with full batch traceability. Compliance with REACH, RoHS, and SVHC is available upon request. For engineers needing a compact, chrome‑plated butterfly latch with consistent performance, the NRH 6318-39 delivers excellent value.