M3 Aluminum Black Anodized Countersunk Head Bolt Washers Gasket (10 PCS)

Product Description

The M3 Aluminum Black Anodized Countersunk Head Bolt Washers Gasket (10 PCS) set is a premium hardware solution designed for makers and engineers who demand a professional, flush-mount finish for their machine builds. Specifically engineered for use with M3 countersunk (flat-head) screws, these washers allow the bolt head to sit perfectly recessed within the internal taper. This pack of 10 provides enough hardware to complete major assembly sections, such as mounting the side panels on a Voron Trident or securing the control faceplates on a custom DIY CNC router.

Manufactured from high-grade aluminum and finished with a brilliant Black anodized coating, these washers offer exceptional corrosion resistance and a sleek, metallic aesthetic that integrates seamlessly with clear-anodized 2020 and 3030 aluminum extrusions. Because they are made from lightweight aluminum, they are ideal for high-speed motion systems where reducing gantry mass is critical for maintaining high acceleration and precision.

Beyond the visual upgrade, these washers act as a protective gasket, distributing clamping force across a wider area to prevent steel bolts from galling or cracking delicate 3D printed parts and acrylic panels. Whether you are assembling a laser engraver enclosure or finishing a high-end 3D printer, this 10-piece set ensures you have the precision hardware needed for a clean, industrial look.

Key Features

• Flush-Mount Design: Featuring a precision 90-degree internal taper, these washers allow M3 flat-head bolts to sit flush for a smooth, professional surface.

• Silver Anodized Finish: Provides a durable, oxidation-resistant surface with a bright metallic sheen that matches standard aluminum profiles.

• Lightweight Performance: High-strength aluminum construction reduces the weight of moving axes, making them superior to heavy steel alternatives for 3D printing gantries.

• Surface Protection: Functions as a load-spreading gasket to protect 3D printed components and acrylic shields from fastener stress.

• Value 10-Piece Pack: Supplied in a set of 10 to cover multiple mounting points on a single machine build or electronics enclosure.

Applications

• Securing exterior panels and deck plates on Voron, CoreXY, and custom 3D printer frames.

• Providing a professional, flush-mount finish for CNC control panels and electronics enclosures.

• Mounting transparent acrylic or polycarbonate shields on laser engravers without damaging the material.

• Aesthetic hardware upgrades for visible structural joints, motor mounts, and brackets.