Master Lock 3KALF-3753 Keyed Alike Padlock 1-9/16 in

Product Description

The MASTER LOCK 3KALF-3753 is a laminated steel padlock designed for keyed-alike applications where multiple locks must operate on a single key. The body is constructed from laminated steel layers, providing solid resistance to cutting and impact. The steel shackle measures 9/32 inches in diameter and 1-1/2 inches in height, giving adequate clearance for standard hasps, chains, and gate latches. A 4-pin tumbler cylinder delivers reliable key operation and pick resistance suitable for light industrial, commercial, and facilities maintenance use. This padlock is installed by locksmiths, facilities technicians, and maintenance trades wherever coordinated keying across multiple lock points is required.

This padlock fits standard applications including equipment lockout/tagout setups, storage units, gate latches, tool cribs, and utility enclosures. Its 1-9/16-inch wide body is sized for use with common hasp hardware found in commercial and light industrial facilities. The keyed-alike configuration is particularly useful for maintenance departments managing multiple access points under a single key system. No specific system or model compatibility has been stated by the manufacturer for this SKU beyond the general laminated steel padlock product category.

Key Features

• Laminated steel body construction for cut and impact resistance
• Keyed-alike configuration allows one key to operate multiple locks of the same keying
• Steel shackle with 9/32-inch diameter and 1-1/2-inch clearance height
• 4-pin tumbler cylinder for reliable key operation and basic pick resistance
• Compact 1-9/16-inch body width fits standard hasp and chain hardware

Compatibility

Designed as an OEM-style replacement or direct-use laminated steel padlock compatible with standard hasp, chain, and gate latch hardware sized for a 1-9/16-inch wide padlock body.

Installation Notes

Installation requires no special tools beyond threading the shackle through the hasp or chain link and snapping it closed. Always verify the shackle clearance is sufficient for the hasp or anchor hardware before installation. For lockout/tagout applications, follow OSHA 29 CFR 1910.147 procedures and verify the lock is assigned to a single authorized user or keyed-alike group as required by the site energy control program. Inspect the shackle and body for wear or damage during routine safety audits.