Master Lock 643EC4 Set Your Own Combination Padlock – 4 Pack, Silver

Master Lock 643EC4: Set Your Own Four-Digit Padlock

The Master Lock 643EC4 padlock blends sturdy metal construction with simple, keyless security that’s ideal for indoor spaces like cabinets, lockers, and storage units. Its 1-9/16 inch (40 mm) wide metal body delivers a compact, solid feel in hand, while the nickel-plated steel shackle—at 1/4 inch (6 mm) in diameter and 7/8 inch (22 mm) long—offers a practical balance of strength and flexibility for everyday use. The four-dial system enables you to set a personal code, eliminating the need for keys in environments like classrooms, gyms, or shared workspaces. The lock ships preset to 0-0-0-0 and includes instructions for adjusting the combination, giving you a fast path to customized access control.

Durability meets everyday practicality with a sleek, silver-finished body built to withstand routine handling. This indoor padlock is described as a compact solution for securing doors, lockers, and storage compartments where quick access is valued. A Limited Lifetime warranty accompanies this model, underscoring Master Lock’s commitment to long-term reliability in non-extreme environments.

Key Benefits and Real-Life Uses

• Four-digit combination lets you set and recall a personal access code, avoiding the need for keys.
• Solid metal body and nickel-plated shackle provide a sturdy feel and practical resistance to common tampering in daily use.
• Compact size is well-suited for indoor lockers, cabinets, and small storage spaces in schools, offices, and athletic facilities.
• Silver finish offers a clean, professional look that blends with many indoor environments.

• Simple reset: preset to 0-0-0-0 with user/manual instructions for changing your code when needed.
• Part of a four-pack, making it convenient for multiple locations like classrooms, team rooms, and shared storage.
• Lightweight, portable design that can be moved between rooms or facilities as needed.
• Backed by Master Lock’s Limited Lifetime warranty for peace of mind in suitable indoor settings.

How to Use (Quick Guide)

• Rotate the dials to your chosen four-digit code.
• Align the dials to release the shackle and open the lock.
• To reset, follow the manual instructions to set a new combination.
• Lock up by closing the shackle and scrambling the dials after use.

Product Details at a Glance

• 1-9/16 in (40 mm) wide metal body
• 1/4 in (6 mm) diameter shackle; 7/8 in (22 mm) long
• Nickel-plated steel shackle for durability
• Four-digit combination for convenient, keyless access
• Indoor use with a streamlined silver appearance
• Limited Lifetime warranty