Maxwell Tab Washer

The Maxwell Tab Washer is a precision fastening component designed for marine and industrial applications where secure, corrosion-resistant connections are essential. This compact washer serves as a critical hardware element in systems requiring high-reliability assembly—particularly in saltwater environments and demanding outdoor installations. Tab washers prevent fasteners from backing out under vibration and dynamic loads, making them indispensable for equipment exposed to constant movement or environmental stress.

The Maxwell Tab Washer (MPN 4220) features a tab design that locks into a corresponding slot or groove on the fastener or component surface, preventing rotation and unintended loosening over time. Its compact footprint—measuring 2 x 1 x 2 inches—allows installation in space-constrained assemblies without compromising holding force. The washer's design distributes clamping load across a wider surface area, reducing stress concentration and extending the service life of both the fastener and mounting surface. At just 0.1 lbs, this lightweight component integrates seamlessly into assemblies where weight considerations matter.

Marine equipment operators, industrial maintenance technicians, and equipment manufacturers rely on the Maxwell Tab Washer for critical fastening applications in deck hardware, winches, anchor systems, and offshore installations. The tab-locking mechanism is especially valuable in applications where vibration could otherwise cause fastener creep—a common failure mode in maritime and heavy-duty industrial settings. Installation is straightforward: position the tab into the corresponding slot and torque the fastener to specification. This washer is ideal for anyone requiring a proven, reliable anti-loosening solution that meets demanding durability standards.