Master Lock 5KALF-3755 Laminated Steel Padlock Keyed Alike

Product Description

The MASTER LOCK 5KALF-3755 is a laminated steel padlock designed for securing gates, storage units, equipment enclosures, and other applications where a durable, keyed-alike lock is required. The body measures 2 inches wide and 2-1/2 inches tall with a 3/8 inch shackle diameter. The laminated steel construction layers multiple steel plates together for added strength and resistance to cutting and prying. This padlock is keyed to the 3755 key code, making it part of a keyed-alike system that allows multiple locks to be operated by a single key — a practical advantage for facilities techs, property managers, and tradespeople managing multiple access points.

This padlock is suited for light-to-medium duty applications in residential, commercial, and light industrial settings. Typical uses include securing HVAC equipment access panels, electrical enclosures, storage lockers, tool cribs, and chain-link gate hasps. The keyed-alike 3755 designation is particularly useful on job sites or facilities where a single key must open multiple padlocks, reducing key inventory and improving access management. Installation and use require no tools beyond a hasp or locking staple of appropriate size.

Key Features

• Laminated steel body construction for cut and pry resistance
• 2 inches wide by 2-1/2 inches tall body profile fits standard hasps and staples
• 3/8 inch shackle diameter suits common hasp and chain link applications
• Keyed alike to 3755 key code — multiple locks operable with one key
• Silver finish on steel body
• Sold individually; minimum order quantity of one

Compatibility

Designed as an OEM-style replacement or direct-use padlock compatible with standard hasps, staples, and chain links that accept a 3/8 inch shackle diameter.

Installation Notes

Installation requires a compatible hasp or staple with a clearance opening of at least 3/8 inch to accept the shackle. Verify hasp and mounting hardware are rated for the intended load before use. No tools are required to operate the lock; securing the hasp to its surface should follow the fastener and substrate requirements of the mounting location. Replace any padlock that shows signs of corrosion, shackle wear, or difficulty engaging the locking mechanism.

Technical Specifications

• Body Width: 2 inches
• Body Height: 2-1/2 inches
• Shackle Diameter: 3/8 inch
• Material: Laminated Steel
• Color: Silver
• Keying: Keyed Alike — Key Code 3755
• Weight: 0.84 pounds
• Unit of Measure: Each

Standard Information

• Brand: MASTER LOCK
• Manufacturer Part Number: 5KALF-3755