Countersunk Washer Purple 10pk

The Countersunk Washer Purple 10pk from ALLSTAR PERFORMANCE is an essential fastening component designed for professional mechanics, fabricators, and enthusiasts who demand precision alignment and secure connections in high-vibration environments. These plastic washers are engineered to distribute load evenly across fastened surfaces, preventing bolt head pull-through and protecting underlying materials from damage. The countersunk design allows fasteners to sit flush or recessed, making them ideal for applications where surface profile and aesthetics matter as much as structural integrity.

Each washer in this 10-pack features a 0.25-inch inner diameter (ID), 1-inch outer diameter (OD), and 0.188-inch thickness, delivering optimal bearing surface for standard quarter-inch fasteners. The purple plastic construction offers excellent chemical and corrosion resistance, outperforming traditional steel washers in harsh environments including salt spray, oils, and moisture-prone settings. Plastic materials eliminate the risk of galvanic corrosion when paired with aluminum or composite substrates, while maintaining rigidity and load-bearing capacity across typical automotive and marine applications. The countersunk profile reduces protrusion, creating cleaner lines and safer handling on finished surfaces.

Mechanics and fabricators rely on countersunk washers for engine bay components, battery terminal connections, and trim attachment where bolt heads must remain low-profile. The plastic construction makes these washers particularly valuable in electrical applications where isolation from conductive materials is critical. A 10-pack quantity provides sufficient inventory for complete projects or ongoing maintenance, ensuring consistent fastening solutions across multiple vehicles or equipment assemblies. Compatibility spans any application using 0.25-inch fasteners where load distribution and corrosion resistance are priorities.