Designed to provide a stronger seal than metal or rubber washers alone, these 1-piece washers are metal for strength laying atop a bonded rubber seal that creates a secure grip. Made of neoprene rubber, the seal produces good oil and abrasion resistance. Washers are reusable. Bonded sealing washers also provide more corrosion protection compared to standard washers.
- Size: 5/16 in. x 3/4 in. O.D.
- Metal washer with layer of neoprene rubber on 1-side
- Metal side provides strength while rubber side creates a secure water resistant seal
- Neoprene rubber seal also helps protect against corrosion
- Great for use in plumbing or outdoor applications such as roofing
- Specification(s) met: ASTM A653 type B










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