1-5/16 In. H X 1 In. W X 1-3/4 In. L Steel 4-Pin Cylinder Exterior Padlock

The Master Lock 1UP is a Universal Pin padlock designed for convenient in-store keying. Unlike traditional padlocks that come with keys, this lock arrives unkeyed and must be keyed on site using the #376 universal pin keying tool (sold separately). Once keyed to your specifications, it operates with the same key as other Master Lock padlocks in the #1 to #6 series, providing a unified keying approach across multiple locks.

This Universal Pin padlock is ideal for applications where you want to establish a single key that works across several Master Lock padlocks. The laminated steel body and hardened steel shackle combine durability with security. The 4-pin tumbler cylinder helps prevent picking and unauthorized access.

Features and Benefits

• Universal Pin System: Rekey this padlock on site using the #376 punch tool (sold separately) to match your existing Master Lock key.
• Laminated Steel Body: Constructed from laminated steel for superior strength.
• 4-Pin Tumbler Cylinder: The four-pin design helps prevent picking and provides reliable security.
• Compatible Keying: Once keyed, operates with the same key as Master Lock padlocks #1 through #6.
• Hardened Steel Shackle: The 5/16 in. diameter shackle is made from hardened steel.

Specifications

• Brand: Master Lock
• Model: 1UP
• Case Width: 1-3/4 in.
• Shackle Diameter: 5/16 in.
• Shackle Height: 1-5/16 in.
• Body Material: Laminated Steel
• Shackle Material: Hardened Steel
• Tumbler Pins: 4-pin cylinder
• Key Blank: Model #M1
• No keys included

How to Use

• Keying: Use the Master Lock #376 universal pin keying tool (purchased separately) to rekey this padlock on site to match your existing Master Lock key.