Safety Lockout Hasp, Steel, 1-3/4"W x 4-1/2"L, 1" Jaw dia

Overview

The Master Lock Safety Lockout Hasp (420) is designed for lockout/tagout (LOTO) procedures, enabling multiple workers to simultaneously secure hazardous energy control points during equipment maintenance, repair, or adjustment operations.

Technical Features

• Steel body construction: Provides a hard-wearing, durable frame capable of withstanding demanding industrial environments without deformation under normal working loads.
• Vinyl-coated handle: Improves grip and operator comfort during installation and removal, while offering a layer of protection against abrasion on the steel substrate.
• Accepts up to 6 padlocks simultaneously: Allows multiple workers or supervisors to each apply their own personal lock, ensuring equipment cannot be re-energized until every individual has removed their lock.
• Red color designation: Conforms to standard lockout/tagout color-coding practices, providing immediate visual identification of a secured hazardous energy point.
• 25mm (1") jaw diameter: Compatible with a wide range of standard electrical panel switches, circuit breaker toggles, and valve handles commonly found in industrial and commercial facilities.
• Max 6.35mm shackle diameter: Defines the maximum padlock shackle size accepted, allowing users to correctly specify compatible padlocks prior to use.
• Compact overall dimensions (44mm x 114mm): Enables use in confined or space-restricted panel and switchgear installations where clearance is limited.

Applications

• Electrical panel and circuit breaker lockout during maintenance and repair procedures
• Multi-worker lockout/tagout (LOTO) programs requiring group energy isolation verification
• Industrial machinery and equipment de-energization during servicing or adjustment
• Valve and switch lockout across a broad range of facility and plant operations
• Compliance support for OSHA 29 CFR 1910.147 hazardous energy control procedures