National Marker N129577 Steel Hinge Hasp 3 Inch

Product Description

The NATIONAL MARKER N129577 is a 3-inch steel hinge hasp designed for lockout and security applications in industrial and commercial environments. Constructed from zinc-plated steel, this hasp resists corrosion while providing durable clamping force for padlock-based lockout points. Three offset screw holes are built into the design to distribute load and increase fastening strength at the mounting surface. Licensed electricians, maintenance technicians, and safety personnel typically install this type of hasp as part of lockout/tagout (LOTO) programs in compliance with OSHA 29 CFR 1910.147 energy control procedures.

The N129577 is suited for regular flat-surface mounting as well as around-the-corner applications, making it adaptable to a range of panel edges, junction box flanges, and equipment housings. Its padlockable design allows a single hasp to accept a padlock shackle, securing the locking point during servicing or maintenance. This versatility makes it a practical component for LOTO station kits and individual equipment lockout points across electrical, mechanical, and process control systems.

Key Features

• 3-inch hasp size suitable for standard lockout padlocks
• Zinc-plated steel construction for corrosion resistance
• Three offset screw holes for increased mounting strength
• Compatible with regular and around-the-corner mounting applications
• Padlockable design supports LOTO compliance programs

Compatibility

Designed as an OEM-style replacement or add-on lockout hasp for standard lockout/tagout hardware setups on industrial panels, electrical enclosures, and equipment housings requiring padlock-secured energy isolation points.

Installation Notes

Installation is typically performed by qualified maintenance or safety personnel following an established energy control procedure. Ensure all energy sources are isolated and the equipment is in a zero-energy state before mounting or replacing a hasp. Use appropriate fasteners for the mounting surface material to ensure secure attachment through all three screw holes. Installations should conform to applicable OSHA lockout/tagout regulations and site-specific safety programs.

Technical Specifications

• Size: 3 inches
• Material: Zinc-plated steel
• Weight: 0.205 pounds
• Mounting Holes: 3 offset screw holes
• UPC: 00038613129573

Standard Information

• Brand: NATIONAL MARKER
• Manufacturer Part Number: N129577