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SMART LOCK GUIDES / Sep 22, 2026

Why Zinc Alloy Is the Best Material for Cabinet Locks

Why Zinc Alloy Is the Best Material for Cabinet Locks

When choosing an electronic cabinet lock, the material matters more than most people think. Cheap plastic locks break easily, ordinary steel locks rust in humid environments. The SK-KS31E uses zinc alloy for a reason.

Zinc alloy cabinet lock

Zinc Alloy vs Plastic vs Steel

Zinc Alloy Plastic Ordinary Steel
Strength High Low High
Rust resistance Excellent Excellent Poor
Durability Very high Low Medium
Best for Gym / spa / pool / office Low-use home Dry indoor use

Cabinet lock front view

Why Zinc Alloy Wins for Humid Environments

Spas, swimming pools, gym changing rooms — these places are humid. Ordinary steel locks develop rust stains within months, and plastic locks feel flimsy and break under daily use. Zinc alloy naturally resists corrosion while being strong enough for high-frequency commercial use.

  • Anti-rust – no rust in steamy or humid environments.
  • Strong – withstands daily high-frequency use.
  • Premium feel – looks and feels better than plastic.

Cabinet lock side view

Dual Unlock: PIN + RFID Card

The SK-KS31E supports both PIN code and RFID card unlock. Users can choose whichever is faster for them. Gym members often prefer tapping their RFID wristband, while office staff prefer entering a PIN code. The master code lets administrators manage all user codes.

Cabinet lock angle view

Specifications of the SK-KS31E

  • Model: SK-KS31E
  • Material: Zinc alloy
  • Unlock methods: PIN code / RFID card
  • Application: Storage room / Gym locker / Spa cabinet / Drawer / Wardrobe
  • Features: Easy install / High security / Anti-rust / Durable
  • Power: USB charging

Cabinet lock with RFID keyfob

Getting Started

As an OEM/ODM manufacturer, we supply RFID code cabinet locks with custom logo, packaging and card options for distributors and project buyers. Contact us for samples, bulk pricing or OEM/ODM customization.

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