Gibraltar Z9202BR Extra Thick Flat Washer Brass 3/8 in

Product Description

The GIBRALTAR Z9202BR is an extra thick flat washer machined from solid brass with a plain, uncoated finish. Designed for 3/8 inch screw sizes, it provides a wide bearing surface that distributes clamp load across the fastened joint, reducing pull-through and surface damage. The 3/16 inch thickness makes it suitable for applications where a standard washer would compress, deform, or fail to fill a large clearance gap. The 13/32 inch inside diameter gives it a close fit on a 3/8 inch fastener shank, while the 1 inch outside diameter spreads the load effectively. Plumbers, electricians, HVAC installers, and general contractors reach for brass washers in wet or corrosive environments where steel would rust.

This washer is used in residential and light commercial construction and mechanical work wherever a non-ferrous, corrosion-resistant bearing surface is required. Typical applications include pipe flange assemblies, electrical panel knockouts, deck hardware, marine fixtures, and any installation where contact with moisture, chemicals, or dissimilar metals makes steel unsuitable. The plain finish accepts solder or thread-sealing compounds without adhesion issues and will not introduce galvanic corrosion when paired with copper or brass fittings.

Key Features

• Extra thick 3/16 inch body resists compression and fills oversized clearance holes
• Brass construction provides natural corrosion resistance in wet and outdoor environments
• Plain finish with no coating — no flaking, peeling, or chemical incompatibility concerns
• 13/32 inch inside diameter fits 3/8 inch fastener shanks with minimal slop
• 1 inch outside diameter delivers a wide bearing surface for load distribution
• Inch-system dimensioning for straightforward integration with standard imperial hardware

Compatibility

Designed for use with 3/8 inch screws and bolts in inch-system fastener assemblies where an extra thick, non-ferrous flat washer is specified.

Installation Notes

Install using standard hand tools; no specialized equipment is required for washer placement. Ensure the fastener shank is clean and free of burrs before seating the washer to avoid scoring the brass bore. In plumbing or wet-area applications, follow IPC guidelines for material compatibility when selecting companion fasteners and fittings. Do not overtighten — brass is softer than steel and the washer face can deform under excessive torque.