Master Lock 1KA-3476 Keyed Alike Steel Padlock

Product Description

The MASTER LOCK 1KA-3476 is a keyed-alike steel padlock designed for lockout/tagout applications, equipment securing, and access control in commercial and industrial settings. Built with a 1-3/4-inch steel body and dual bumper styling, it provides reliable physical security in trade environments where multiple locks must open with the same key. The shackle measures 5/16 inches in diameter with 15/16 inches of clearance, making it compatible with standard hasps, chains, and lockout devices. Each unit ships with 2 keys cut to key number 3476.

This padlock is used by electricians, HVAC technicians, plumbers, and other trade professionals who follow lockout/tagout (LOTO) procedures required by OSHA 29 CFR 1910.147. Keyed-alike sets allow a single key to operate multiple locks across a job site or facility, reducing key management complexity during service and maintenance operations. It is equally suited for securing toolboxes, equipment enclosures, gates, and storage units in both residential and commercial settings.

Key Features

• Keyed alike to key number 3476 — one key operates all locks in the same keyed set
• 1-3/4-inch steel body with dual bumper design for added durability and surface protection
• 5/16-inch shackle diameter fits standard lockout hasps and chains
• 15/16-inch shackle clearance accommodates typical hasp and latch applications
• Includes 2 keys per lock
• Silver steel finish suitable for indoor and light outdoor use

Compatibility

Designed as an OEM-style keyed-alike padlock compatible with standard lockout/tagout hasps, safety lockout stations, chains, and equipment enclosure latches requiring a 5/16-inch shackle.

Installation Notes

Installation requires no tools — insert the shackle through the hasp or locking point and engage the locking mechanism. For LOTO compliance, refer to OSHA 29 CFR 1910.147 and your facility energy control program before applying or removing locks on energized equipment. Store duplicate keys securely and verify key number 3476 before ordering additional keyed-alike units to ensure proper set compatibility.

Technical Specifications

• Body Size: 1-3/4 inches
• Shackle Diameter: 5/16 inches
• Shackle Clearance: 15/16 inches
• Material: Steel
• Color: Silver
• Key Type: Keyed Alike
• Key Number: 3476
• Includes: 2 Keys
• Weight: 0.56 pounds
• Unit of Measure: Each

Standard Information

• Brand: MASTER LOCK
• Manufacturer Part Number: 1KA-3476