Gibraltar 42613G Standard Flat Washer Size 6 Black Oxide

Product Description

The GIBRALTAR 42613G is a standard flat washer designed for use with size 6 screws in general fastening applications. Manufactured from 1010 case-hardened steel with a black oxide finish, this washer provides reliable load distribution and surface protection in a compact form factor. It measures 5/32 inches inner diameter, 3/8 inches outer diameter, and 5/64 inches thick. The black oxide coating offers mild corrosion resistance and reduces light reflection in finished assemblies. This washer weighs approximately 0.01 pounds and is sized to the inch measurement system. It is suited for use by electricians, HVAC technicians, plumbers, and general trade professionals wherever a size 6 fastener is specified.

This washer fits size 6 screw applications across a wide range of trade and mechanical installations. Common use cases include panel mounting, bracket fastening, electrical enclosure assembly, and light structural connections in both residential and commercial settings. Its compact OD and consistent thickness make it appropriate for tight clearance applications where standard hardware tolerances are required. The black oxide finish is well suited for indoor and protected outdoor installations where moderate corrosion resistance is acceptable.

Key Features

• Case-hardened 1010 steel construction for dependable load distribution under fastener head
• Black oxide finish provides mild corrosion resistance and a low-profile appearance
• 5/32 inches inner diameter fits size 6 screws precisely
• 3/8 inches outer diameter provides adequate bearing surface without excessive footprint
• 5/64 inches thickness maintains consistent stack height in fastened assemblies
• Inch measurement system compliance for standard domestic hardware specifications

Compatibility

Designed as an OEM-style replacement or standard service hardware for size 6 screw fastening applications across residential and commercial trade installations.

Installation Notes

Installation requires no special tooling beyond a standard screwdriver or nut driver appropriate to the mating fastener. Always ensure the fastener and washer are correctly sized before assembly to avoid stripping or uneven clamping. Follow applicable NEC, IPC, or IFGC guidelines when installing fasteners in code-governed assemblies. De-energize or shut off any powered or pressurized system before servicing components that require this hardware.