Heavy Duty Draw Latch – 73kg Chrome Plated | NRH 5104-56

NRH 5104-56 Draw Latch - Chrome Plated, 73kg Load, Industrial Grade

The NRH 5104-56 is a heavy‑duty draw latch built for industrial closures that demand strength, longevity, and a clean aesthetic. Constructed from cold‑rolled carbon steel with a brilliant chrome plating, it resists corrosion, abrasion, and everyday wear. The over‑center cam mechanism delivers a secure, vibration‑proof lock: push the lever down - the cam pulls the strike plate tight; pull up - it releases instantly. Weighing just 22g yet rated for 720N (73kg) tensile load, this latch offers one of the highest strength‑to‑weight ratios in its class.

Manufactured by NRH Box Hardware (specialist since 1996) under an ISO 9001 certified system. International compliance (SGS, REACH, RoHS, SVHC) is available upon request - contact us for details. OEM/ODM options: custom hole patterns, lever lengths, or logo stamping. Full 2D/3D CAD models available for engineering integration.

Key specs: overall height 70mm, lever length 56.5mm, mounting base 25.5mm wide, with 4×Φ4mm mounting holes. See engineering drawing for precise layout.

Materials & Finish - Built for Real‑World Abuse

The base material is cold‑rolled steel, chosen for its high formability and yield strength. Chrome plating adds a hard, reflective surface (800-1000 HV) that shrugs off scratches, salt spray, and shop solvents. This combination is field‑proven for industrial cabinets, tool carts, and outdoor enclosures that see daily cycling.

Primary Applications - Where It Belongs

• Industrial cabinets & control panels - server racks, PLC enclosures, distribution boxes
• Tool & equipment storage - metal toolboxes, flight cases, military transit boxes
• Vehicles & transport - truck toolboxes, marine compartments, utility vehicle storage
• Outdoor enclosures - communication boxes, generator covers, electronic housing

How It Works - Over‑Center Cam Action

The one‑piece lever operates a rotating cam. When closed, the cam passes its center point, locking mechanically and pulling the strike plate with up to 73kg of force. No springs - pure geometry. This creates a rattle‑free seal that won't loosen under vibration. Release is just a lift of the lever. The 56.5mm lever arm gives ample leverage for gloved or greasy hands.

Key Advantages

• 73kg (720N) holding force - handles heavy doors and pressure‑sealed lids
• Chrome plating - rust resistance + professional mirror finish
• Ultralight - 22g - adds negligible weight to portable cases
• Precision mounting - 4×Φ4mm holes on standard centers
• One‑handed operation - smooth cam action, no sticking
• Customizable - OEM lengths, hole patterns, logo engraving

Technical Specifications

• Brand: NRH Box Hardware
• Model: 5104-56
• Material: Cold‑rolled steel + Chrome plating
• Net Weight: 22g
• Tensile Load: 720N (73kg)
• Dimensions: Height 70mm, Lever 56.5mm, Base width 25.5mm, Mounting holes 4×Φ4mm
• Compliance: ISO 9001, SGS, REACH, RoHS, SVHC (available on request)
• Since: 1996 | OEM/ODM ready | CAD upon request

Why NRH

Over 25 years of industrial latch engineering. The 5104-56 is designed for maintenance‑free service in harsh environments - from factory floors to off‑road toolboxes. Every batch is traceable under ISO 9001. Need a variation? Our OEM team delivers custom solutions fast.