The Simpson Bearing Plate with a 1-inch bolt hole and 3-1/2 x 3-1/2 square footprint is purpose-built for structural connections that demand reliable load distribution and a finished, professional appearance. Engineered by Simpson and finished with a flat black powder coating, this bearing plate delivers a meaningfully larger bearing surface than standard cut washers, making it a dependable choice for load-critical assemblies where both performance and aesthetics matter.

Key Features

• Square 3-1/2 x 3-1/2 bearing surface - spreads load across a wider footprint than standard cut washers, reducing stress concentration at critical structural connections
• 1-inch bolt diameter hole - sized precisely for 1-inch bolts, ensuring a secure, accurate fit without modification at the connection point
• 3/8-inch plate thickness - provides the structural robustness needed for demanding load transfer applications where a lightweight washer would be insufficient
• Flat black powder-coated finish - offers greater durability and a cleaner appearance compared to standard painted alternatives, while also contributing corrosion resistance in exposed structural assemblies
• Made in the United States - meets the sourcing expectations of projects requiring domestic-origin structural hardware

Why This Product

• Built for load distribution where it counts - the generous square bearing area makes this plate the practical choice over cut washers in any assembly where load transfer precision directly affects structural integrity
• Powder coating that works as hard as the plate itself - the black powder-coated finish resists wear and corrosion, keeping connections protected and looking intentional rather than afterthought in visible structural applications
• A fit-and-forget fastening solution - the 1-inch bolt hole is engineered to match the bolt diameter exactly, eliminating slop in the connection and giving installers confidence in a repeatable, consistent result
• Versatile across structural applications - equally at home in timber framing, post-base assemblies, and heavy structural connections where a square bearing plate with a durable finish is called for by design

Specifications

• Model No.: BP 1PC
• Bolt Diameter (in.): 1
• Thickness: 3/8 in.
• Width - W (in.): 3-1/2
• Length - L (in.): 3-1/2
• Coating / Material: Powder Coating, Black
• Country of Origin: United States

Approved Applications

• Load distribution at critical structural connections where a larger bearing surface is required
• Applications calling for a 1-inch bolt diameter bearing plate with a square profile
• Structural assemblies where a durable, finished appearance is desired alongside reliable performance
• Projects requiring a powder-coated black finish for corrosion resistance and aesthetics

Note: Product dimensions and/or screw or bolt holes may differ from picture. Please see item description for specifications.

Frequently Asked Questions

How does the BP 1PC differ from a standard cut washer?

The BP 1PC provides a significantly greater bearing surface than standard cut washers, which means it distributes loads more effectively at critical structural connections. Its 31/2 x 31/2-inch square footprint and 3/8-inch thickness make it a more robust choice wherever precise load transfer is required.

What bolt size is this bearing plate designed for?

The BP 1PC is designed for use with a 1-inch diameter bolt. The hole is sized specifically for this bolt diameter to ensure a secure and precise fit at structural connections.

What type of finish does the BP 1PC have, and is it more durable than a painted finish?

The BP 1PC features a flat black powder-coated finish. Powder coating is noted as delivering superior durability and a better appearance compared to standard painted alternatives, making it a preferred choice for structural assemblies where finish quality matters alongside structural performance.

What are the overall dimensions and thickness of the BP 1PC?

The BP 1PC measures 31/2 inches wide by 31/2 inches long with a square profile, and has a plate thickness of 3/8 inch. These dimensions make it a compact yet robust bearing plate suitable for a variety of structural applications requiring a 1-inch bolt diameter bearing surface.