The Simpson Hidden Timber Connector Kit (ETB230A-SCRB) delivers a clean, professional beam connection with zero visible hardware once installed. Engineered for structural integrity, this hidden connector system uses interlocking plates fastened to each member, locking together to form a load-tested, secure connection ideal for timber framing applications where aesthetics and strength must coexist.

Key Features

• Completely Hidden Hardware: Interlocking plate design conceals all fasteners once the connection is complete, leaving a clean, hardware-free appearance.
• Load-Tested Connection: Provides a structurally verified beam connection backed by load testing for reliable performance.
• Interlocking Plate System: Upper and lower plates interlock securely between the supporting and supported beams for a firm structural bond.
• Includes SCRB Screws: Kit comes supplied with SCRB screws for installation of the horseshoe plate onto the supported beam end.
• Angled Screw Installation: SCRB screws are installed at a downward angle (approximately 45 deg.) for optimal holding strength and structural performance.
• Precision Pocket Routing: Lower plate seats into a 3/8" (10mm) deep routed pocket in the supporting beam for a flush, concealed fit.

Specifications

• Manufacturer Part Number (MPN): ETB230A-SCRB
• Country of Origin: Denmark (DK)

Approved Applications

• Structural beam-to-beam connections requiring concealed hardware
• Timber frame construction where visible connectors are undesirable
• Supporting beam connections requiring a load-tested, hidden fastening solution
• Architectural and exposed timber applications where a clean finish is required

What's Included

• ETB230A lower plate (for supporting beam)
• Horseshoe plate (for supported beam end)
• SCRB screws (for horseshoe plate installation)

Note: 16d hot-dip galvanized nails for lower plate installation are not included in the kit.

Installation Overview

• Rout a 3/8" (10mm) deep pocket into the side of the supporting beam as directed for the lower plate.
• Install the lower plate using 16d hot-dip galvanized nails (not included in kit).
• Install the horseshoe plate onto the end of the supported beam using the SCRB screws supplied in the kit, installed at a downward angle of approximately 45 deg..

Frequently Asked Questions

What type of screws are included in the kit?

The kit includes SCRB screws specifically designed for installing the horseshoe plate onto the end of the supported beam.

At what angle should the SCRB screws be installed?

The SCRB screws should be installed at a downward angle of approximately 45 deg. into the supported beam end.

Are nails included for the lower plate installation?

No. The 16d hot-dip galvanized nails required for installing the lower plate into the supporting beam are not included in the kit and must be sourced separately.

How deep does the pocket need to be routed for the lower plate?

A 3/8" (10mm) deep pocket must be routed into the side of the supporting beam to properly seat the lower plate for a flush, concealed installation.

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