Abb H-118-D Lock Washer 1/2 Inch Steel

Product Description

The ABB H-118-D is a 1/2 inch steel lock washer designed to maintain fastener tension and resist loosening under vibration, thermal cycling, and mechanical stress. This split-ring style washer seats between a bolt head or nut and the mating surface to bite into both and prevent back-out. It is a standard fastening component used across HVAC, electrical, plumbing, and general mechanical assembly. Electricians, HVAC technicians, and plumbers rely on this type of hardware during equipment installation, panel mounting, and pipe or conduit support work where secure, lasting connections are required.

The H-118-D is suited for use in both residential and light commercial applications wherever a 1/2 inch bolt or machine screw requires a locking fastener. Common install scenarios include securing electrical enclosures, mounting brackets, condensing unit hardware, and mechanical equipment frames. The steel construction makes it appropriate for interior and protected exterior locations where corrosion exposure is limited.

Key Features

• Sized for 1/2 inch bolts and machine screws
• Steel construction provides strength and durability under load
• Split-ring design bites into fastener and base surface to resist loosening
• Suitable for use in HVAC, electrical, and plumbing installations
• Standard hardware format for quick sourcing and replacement

Compatibility

Designed as a standard 1/2 inch lock washer for use with 1/2 inch bolts and fasteners across general mechanical, HVAC, electrical, and plumbing applications.

Installation Notes

Installation requires no specialized tools beyond a standard wrench or socket set. Always de-energize electrical equipment and shut off mechanical systems before servicing fastened connections. Place the lock washer between the nut or bolt head and the mounting surface prior to final torque. Follow applicable NEC or equipment manufacturer guidelines when fastening electrical enclosures or equipment mounts.

Technical Specifications

• Bolt Size: 1/2 inch
• Material: Steel
• UPC: 785991786569

Standard Information

• Brand: ABB
• Manufacturer Part Number: H-118-D