Master Lock 3KA-3358 Laminated Steel Padlock Keyed Alike

Product Description

The MASTER LOCK 3KA-3358 is a laminated steel padlock built for maximum security applications across trade and industrial jobsites. The body is constructed from laminated steel layers, providing high resistance to cutting, prying, and impact. The shackle is steel with a 9/32-inch diameter, 5/8-inch width, and 3/4-inch clearance height. A 4-pin tumbler cylinder provides pick resistance suitable for securing equipment, tool storage, gates, and service access points. At 0.45 pounds, this padlock is compact enough for portable use while delivering the structural integrity expected in demanding environments.

This padlock is configured as keyed alike, meaning multiple units sharing the same key code can be ordered and operated with a single key. That makes it well-suited for facilities managers, service contractors, and field technicians who need to manage access across multiple lock points without carrying separate keys. Typical applications include securing electrical panels, HVAC equipment enclosures, storage units, gate hasps, and tool caddies on residential and commercial jobsites.

Key Features

• Laminated steel body construction for high resistance to cutting and impact
• Keyed alike configuration allows one key to operate multiple locks
• 4-pin tumbler cylinder for pick resistance
• 9/32-inch diameter steel shackle with 3/4-inch clearance height
• Compact 1-9/16-inch body width for use with standard hasps and hardware
• Rated as a maximum security padlock

Compatibility

Designed as an OEM-style replacement or direct-fit padlock for standard hasp and staple configurations commonly found on equipment enclosures, gate hardware, and storage applications.

Installation Notes

Installation requires no tools beyond fitting the shackle through a compatible hasp or staple. Verify hasp throat opening and shackle clearance dimensions before installation to confirm fit. For electrical enclosure applications, follow NEC guidelines regarding lockout/tagout procedures and ensure power is de-energized before securing panels. Keep the keyway clear of debris and lubricate the cylinder periodically in outdoor or high-moisture environments.