Gibraltar 63609G M24 Flat Washer Case Hardened Steel

Product Description

The GIBRALTAR 63609G is a standard flat washer designed for use with M24 metric fasteners. Manufactured from 1010 case-hardened steel with a black oxide finish, this washer distributes clamp load evenly across the bearing surface, reducing fastener pull-through and protecting the mating material. The black oxide coating provides a baseline level of corrosion resistance and minimizes light reflection in finished assemblies. With an inside diameter of 26 mm, an outside diameter of 51 mm, and a thickness of 4 mm, the washer meets standard metric dimensional requirements for M24 bolt applications. It is a working hardware component suited for mechanical assembly, structural fastening, and equipment maintenance tasks across trade and industrial environments.

This washer is used in metric fastener assemblies requiring a standard flat washer at the M24 screw size. Typical applications include structural steel connections, machinery mounting, equipment fabrication, and general mechanical assembly where load distribution and surface protection are required. The black oxide finish makes it suitable for indoor applications or environments with minimal moisture exposure. It is commonly installed by millwrights, ironworkers, pipefitters, and general mechanical tradespeople working with metric hardware.

Key Features

• M24 screw size with 26 mm inside diameter for correct bolt fit
• 51 mm outside diameter provides broad load distribution across the bearing surface
• 4 mm thickness adds rigidity under high-clamp-load fastening applications
• 1010 case-hardened steel construction resists deformation under torque
• Black oxide finish reduces surface corrosion and minimizes light reflection
• Metric dimensioning conforms to standard M24 flat washer specifications

Compatibility

Designed as a standard metric flat washer for use with M24 screws and bolts in general mechanical and structural fastening assemblies.

Installation Notes

Install using standard hand tools or impact equipment appropriate for M24 fastener assemblies. Place the washer on the fastener before seating against the work surface to ensure full contact across the outer diameter. Verify that the mating surface is clean and flat prior to installation to prevent uneven load distribution. Always follow applicable torque specifications provided by the fastener or equipment manufacturer for the specific assembly.