Gibraltar 42625G Standard Flat Washer 3/4 in Steel

Product Description

The GIBRALTAR 42625G is a standard flat washer designed for use with 3/4-inch screws and bolts. Manufactured from case-hardened 1010 steel with a black oxide finish, this washer distributes load evenly across fastened surfaces, reduces fastener pull-through, and resists surface corrosion in typical indoor and sheltered applications. The black oxide treatment provides a mild corrosion barrier while maintaining a low-profile, non-reflective appearance. With an inside diameter of 25/32 inches, an outside diameter of 1-5/8 inches, and a thickness of 1/4 inch, this washer meets standard dimensional tolerances for 3/4-inch hardware assemblies.

This flat washer is suited for general mechanical assembly, structural fastening, and maintenance applications where a 3/4-inch screw or bolt is used. It is commonly installed in industrial equipment, HVAC frame assemblies, plumbing support structures, electrical enclosures, and similar trade applications. The case-hardened construction makes it appropriate for higher-load connections where a standard mild steel washer may deform under torque.

Key Features

• Case-hardened 1010 steel construction for improved load resistance under torque
• Black oxide finish provides mild corrosion resistance and low-reflectivity appearance
• Standard flat washer geometry: 25/32 inches ID, 1-5/8 inches OD, 1/4 inch thick
• Sized for 3/4-inch screw and bolt applications
• Inch measurement system; conforms to standard dimensional tolerances

Compatibility

Designed as an OEM-style replacement or standard hardware component for use with 3/4-inch fasteners in mechanical, structural, and trade assembly applications.

Installation Notes

Install using standard hand tools appropriate for the fastener type. Ensure mating surfaces are clean and free of debris before seating the washer. Black oxide finish offers limited corrosion resistance and is not recommended for prolonged outdoor exposure or wet environments without additional protective coating. Follow applicable mechanical and structural codes for the specific application.