The Simpson ZMAX HCJTZ Concealed Joist Tie with Pins is a heavy concealed beam tie engineered for demanding timber framing applications, particularly large glulam beam connections that must resist heavy loads while maintaining a clean, hardware-free appearance on the underside of the beam. Its unique profile allows the connector to be inserted directly into the end of the beam without cutting a visible slot into the bottom, making it a practical choice for exposed timber work where finished aesthetics matter as much as structural performance. The HCJTZ works as part of a complete concealed connector system alongside the CPTZ and CBTZ, providing a cohesive solution for beam-to-post and beam-to-header connections in heavy timber construction.

Key Features

• Concealed installation profile - the unique connector shape allows insertion into the beam end with no visible slot cut into the bottom of the beam, so structural hardware stays hidden and the underside of the beam looks finished and clean.
• Multiple routing options - three installation configurations give contractors flexibility to match job-site conditions and finish requirements without compromising load capacity.
• Sloped-member capability up to 45 deg. - supports carried-member installations pitched up or down at full table loads, accommodating roof and other angled framing conditions without the need for custom hardware.
• All required fasteners included - dowels and screws ship with the connector, reducing trips to the supply house and keeping the installation straightforward from the start.
• ZMAX galvanized finish on 10 gauge steel - heavy-gauge construction paired with a protective galvanized coating delivers the corrosion resistance and strength needed for load-bearing timber framing in demanding environments.
• Part of the CPTZ and CBTZ concealed connector system - integrates directly with companion connectors for a unified, engineered approach to concealed heavy timber connections on a single project.

Why This Product

• Structural strength without visible hardware - the HCJTZ is purpose-built for large glulam beam connections resisting heavy loads, so builders do not have to choose between meeting load requirements and achieving an exposed-timber aesthetic.
• Designed for real-world installation flexibility - with sloped-member support up to 45 deg. at full table loads and multiple routing configurations, this connector handles a wide range of framing conditions that simpler ties cannot accommodate.
• A complete concealed system in one product family - pairing the HCJTZ with the CPTZ and CBTZ gives engineers and contractors a coordinated set of connectors for beam-to-post and beam-to-header work, simplifying specification and on-site coordination.
• Domestic production from Simpson - the HCJTZ is a Simpson product made in the United States, backed by the engineering documentation and code-compliance resources that structural professionals rely on when specifying connectors for permitted work.

Specifications

• Model Number: HCJTZ
• Description: Concealed Joist Tie with Pins
• Material: 10 gauge steel
• Finish: ZMAX galvanized
• Country of Origin: United States

Approved Applications

• Concealed beam-to-post and beam-to-header connections in heavy timber framing
• Large glulam beam connections resisting heavy loads
• Applications requiring a finished, hardware-free appearance on the underside of the beam
• Sloped carried-member installations up to 45 deg. (up or down) at full table loads
• Use as part of the concealed connector system with the CPTZ and CBTZ

What's Included

• HCJTZ Concealed Joist Tie
• All required dowels
• All required screws

Note: Screws require a hex-head driver for installation. Router end of beam for screw heads to achieve a flush installation.

All product specifications and installation requirements should be verified against current manufacturer documentation prior to use. Always follow applicable local building codes and consult a qualified engineer for structural applications.