DIYers and repair pros, this 100-pack of sealing washers is exactly what you need for all kinds of projects. The #10 size with 1/2 inch outside diameter and 4.8mm inside diameter fits standard fasteners perfectly. What makes these special is the EPDM rubber bonded to 304 stainless steel - this combination creates an excellent seal that's resistant to water, weather, and harsh conditions. The stainless steel provides strength and corrosion resistance, while the EPDM rubber acts as both a seal and vibration dampener. These washers are perfect for applications where you need to prevent leaks, reduce noise from vibration, or protect surfaces from damage under fastener heads. They work great on outdoor equipment, automotive applications, plumbing projects, household appliances, and anywhere you need reliable sealing performance. The 304 stainless steel (18-8 grade) means they won't rust or corrode, even in high humidity or temperature extremes. The quality is noticeable - clean edges, consistent sizing, and the rubber is firmly bonded to the metal. Having 100 pieces means you'll have plenty for current projects and future repairs. Whether you're working on cars, boats, outdoor furniture, or home maintenance tasks, these sealing washers deliver professional results without the hardware store markup. Definitely a must-have for any well-stocked toolbox or workshop.
Free 30-day returns 
Free 30-day returns
