Master Lock 3KA-3755 Keyed Alike Padlock

Product Description

The MASTER LOCK 3KA-3755 is a keyed-alike padlock designed for use in trade and commercial applications where multiple locks must operate on the same key. Keyed-alike configurations are common in facilities, job sites, and service fleets where technicians need access to multiple secured points without carrying a full ring of individual keys. At 0.48 pounds, this is a compact, lightweight unit suited for standard hasps, gate latches, tool storage, and equipment lockout points. It is typically installed and managed by facilities personnel, service coordinators, or lead technicians overseeing multi-point access control.

This padlock fits standard residential and light commercial applications where a keyed-alike lock set is required. It is sold as a single unit and is intended to be used alongside other locks sharing the same key code, identified by the KA designation in the part number. The 3755 key series identifies the specific key cut, allowing multiple locks to be ordered or matched to the same key without rekeying.

Key Features

• Keyed-alike configuration allows one key to operate multiple locks in the same series
• Compact and lightweight at 0.48 pounds, suitable for portable and fixed applications
• Sold individually, compatible with standard hasp and latch hardware
• 3755 key series designation enables accurate key matching when ordering additional locks

Compatibility

Designed as a keyed-alike replacement or addition for installations using the MASTER LOCK 3KA series with the 3755 key cut. Fits standard padlock hasps and lockout hardware common in trade and facilities environments.

Installation Notes

Installation requires no special tools — insert the shackle through the hasp or latch and engage the locking mechanism. For lockout/tagout (LOTO) applications, follow OSHA 29 CFR 1910.147 procedures and ensure the lock is used only by authorized personnel. Do not force the shackle if resistance is felt, as this may indicate a misaligned hasp or incorrect key. Retain the key code on file to allow future key duplication or additional keyed-alike units to be ordered.

Technical Specifications

• Weight: 0.48 pounds
• Unit of Measure: Each
• Minimum Order Quantity: 1

Standard Information

• Brand: MASTER LOCK
• Manufacturer Part Number: 3KA-3755