LD-312 Zinc Alloy Combination Dial Padlock Resettable Keyless | Wholesale Supplier

LD-312 Zinc Alloy Combination Dial Padlock Resettable Keyless | Wholesale Supplier

SKU: LD-312

Zinc alloy combination dial padlocks with resettable 3 or 4 digit keyless codes, 30-50mm die-cast bodies, and hardened steel shackles for lockers, luggage, gates, and cabinets.

MOQ:200
Price Range:$0.50 - $5.00 / pc
Material:Zinc Alloy Die-Cast Body / Hardened Steel Shackle / Brass or Zinc Alloy Dials / Chrome or Brass Plated Finish / Resettable Combination Mechanism
Certifications:CE / ISO 9001
Size Range:Body Size: 30mm / 35mm / 40mm / 50mm; Shackle Diameter: 5-8mm; Shackle Clearance: 15-30mm; Combination: 3-digit or 4-digit resettable
Color Options:Silver / Chrome / Brass / Black / Colorful Dials
Weight:80
Packing:Individual blister card or color box; 1 pc per pack; 24-48 packs per carton; custom branded packaging available
Lead Time:15-25 days
Sample:Available
Customization:OEM logo on body and packaging; custom dial colors and finishes; 3-digit or 4-digit combination options; custom body sizes and retail packaging
Mixed Order:true

Product Details

LD-312 Zinc Alloy Combination Dial Padlock Resettable Keyless

Zinc alloy combination dial padlocks with resettable keyless 3 or 4 digit codes and hardened steel shackles for lockers, luggage, gates, and cabinets.

The LD-312 zinc alloy combination dial padlock eliminates the inconvenience of lost keys by offering fully keyless operation through a resettable 3-digit or 4-digit combination mechanism. Designed for users who value convenience without sacrificing security, this padlock features a zinc alloy die-cast body in sizes from 30mm to 50mm, making it a versatile choice for school lockers, luggage, gates, cabinets, and general-purpose storage. The combination dials rotate with positive tactile feedback, allowing users to set and reset their personal code in seconds without any tools, which is particularly valuable in shared or frequently changed access environments such as gyms and rental facilities.

At the core of the LD-312 is a hardened steel shackle that resists cutting and prying, paired with a precision resettable combination mechanism engineered for reliable performance over thousands of opening cycles. The zinc alloy body provides a robust housing that absorbs impact, while the chrome or brass plated finish enhances weather resistance and visual appeal for retail presentation. The brass or zinc alloy dials are clearly numbered for easy reading in all lighting conditions, and the resettable design means a single padlock can be re-issued with a new code whenever access changes, reducing replacement costs for facility managers and property operators. With no keys to duplicate or lose, the combination design also simplifies access management for families, students, and travelers.

For wholesale distributors and importers, the LD-312 combination padlock series offers strong margins and broad market appeal across education, travel, and hardware retail channels. OEM branding can be applied to the lock body and packaging, and custom dial colors, finishes, and body sizes can be specified to match regional preferences. Keyed-alike concerns are eliminated by the keyless design, making these padlocks especially attractive for school and locker procurement programs. Each padlock is individually packaged for retail display, with carton quantities optimized for efficient shipping. Backed by a minimum order quantity of 200 pieces and a production lead time of 15 to 25 days, the LD-312 is a practical, cost-effective solution for buyers seeking reliable resettable combination padlocks at competitive wholesale prices.

Core Features

  • Zinc alloy die-cast body offers durable impact-resistant housing
  • Hardened steel shackle resists cutting and prying attacks
  • Resettable 3-digit or 4-digit combination enables keyless convenience
  • Code can be reset in seconds without any tools
  • Chrome or brass plated finish enhances corrosion resistance
  • Clearly numbered brass or zinc alloy dials for easy reading

Application Scenarios

  • School and university locker rooms
  • Travel luggage and backpack security
  • Residential gate and cabinet locking
  • Gym and fitness facility storage
  • Workshop and garage storage
  • Rental property and shared access management

FAQ

How do I reset the combination on this padlock?

With the padlock open, rotate the dials to the current code, then use the reset tool or press the reset button to set a new 3-digit or 4-digit code. Release the reset mechanism and scramble the dials to lock.

Is this padlock suitable for outdoor use?

The zinc alloy body with chrome or brass plated finish resists everyday moisture. For prolonged outdoor exposure we recommend sheltered installation, as standing water can affect the combination mechanism over time.

What is the difference between 3-digit and 4-digit combinations?

A 3-digit combination offers 1,000 possible codes and is easier to recall, while a 4-digit combination provides 10,000 possible codes for higher security. Both are fully resettable and keyless.

Can I order these padlocks with custom branding?

Yes, OEM logo printing on the lock body and custom retail packaging are available. Custom dial colors and finishes can also be specified for bulk orders.