# What is a Cup Washer?
A cup washer is a specialized type of washer designed to distribute load and provide a secure fit for fasteners, particularly in construction and woodworking applications. It features a cupped or dished shape, allowing it to sit flush against surfaces while providing additional support.
## Key Features & Benefits
– Load Distribution: The wide surface area helps prevent damage to soft materials like wood or drywall.
– Improved Stability: The cupped design keeps bolts, screws, or nails firmly in place.
– Corrosion Resistance: Often made from galvanized steel, stainless steel, or other durable materials.
– Versatility: Used in roofing, decking, framing, and electrical installations.
## Common Applications
– Securing metal brackets to wooden beams
– Roofing and siding installations
– Supporting anchor bolts in concrete
Cup washers are essential for ensuring strong, long-lasting fastenings in various structural and mechanical applications. Choosing the right size and material ensures optimal performance and durability.