The Simpson Strong-Tie Bearing Plate with a 1-1/16 in. hole and 3 x 3 x 3/8 in. dimensions is a structural plate designed to provide a greater bearing surface than standard-cut washers, distributing load reliably at critical connections. By transferring concentrated compressive forces between two structural elements, this plate serves as a dependable solution for shearwall anchor bolt connections and other structural applications where load distribution and connection integrity are essential.

Key Features

• Greater bearing surface than standard-cut washers - covers more surface area at the connection point, reducing stress concentration and improving load transfer performance.
• 3 x 3 in. plate size with 3/8 in. thickness - provides a robust, rigid platform capable of handling the compressive forces typical of anchor bolt and shearwall connections.
• 1-1/16 in. hole diameter sized for a 1 in. bolt - fits the most common large-diameter anchor bolt used in shearwall and structural connections, eliminating the need to source a separate oversized washer.
• Transfers concentrated compressive forces between two structural elements - engineered specifically for critical load-path connections where a standard washer would be insufficient.
• Hot-dip galvanized finish available - allows the plate to be specified for applications where corrosion resistance is a project requirement, without needing a different product entirely.

Why This Product

• A direct, engineered upgrade over standard-cut washers - the larger 3 x 3 in. footprint and 3/8 in. thickness are purpose-built for load distribution at anchor bolt connections, giving structural connections a more reliable bearing surface where it matters most.
• Designed for shearwall applications - approved specifically for shearwall anchor bolt connections, making this plate a code-conscious choice for builders and engineers working on lateral-force-resisting systems.
• Sized for a 1 in. anchor bolt with a properly fitted hole - the 1-1/16 in. hole provides the right clearance for a 1 in. diameter bolt, ensuring a secure, properly aligned fit without improvised solutions.
• Flexible finish options for varying exposure conditions - the availability of a hot-dip galvanized version means this bearing plate can be specified for both protected interior and more demanding environments without switching to an entirely different product.

Specifications

• Manufacturer: Simpson Strong-Tie
• MPN: BP 1-3
• Bolt Diameter (in.): 1
• Hole Diameter (in.): 1-1/16
• Width - W (in.): 3
• Length - L (in.): 3
• Thickness (in.): 3/8
• Coating/Material: None (HDG available)

Approved Applications

• Shearwall anchor bolt connections
• Structural connections requiring load distribution at critical points
• Locations where concentrated compressive forces must be transferred between two structural elements
• Replacement for standard-cut washers where a greater bearing surface is needed

Frequently Asked Questions

What is the purpose of the Simpson BP 1-3 Bearing Plate?

The BP 1-3 is designed to provide a greater bearing surface than standard-cut washers and to distribute load at critical connections. It works by transferring concentrated compressive forces between two structural elements, making it a stronger and more reliable alternative to standard washers.

What bolt size is the BP 1-3 designed to accommodate?

The BP 1-3 features a 1-1/16" hole and is designed for use with a 1" diameter bolt. The BP series as a whole is sized for most common anchor bolt sizes ranging from 3/8" to 1".

How should the BP 1-3 be installed in shearwall applications?

For shearwall applications, position the edge of the plate washer within 1/2" of the sheathed edge of the track-bottom plate. No additional standard-cut washer is required. Tighten each anchor bolt with a nut and washer.

Is a corrosion-resistant coating available for the BP 1-3?

Yes. While the standard BP 1-3 has no coating, the BP series is available with a hot-dip galvanized (HDG) coating to protect the plate from corrosion when exposed to the elements, providing higher corrosion resistance for outdoor or exposed applications.

Note: Product dimensions and/or Screw or Bolt holes may differ from picture.