Simpson HL57GPC HLGPC 5 in. x 7 in. Black Powder-Coated Ornamental Heavy Angle with Gusset is part of the Simpson Decorative Hardware line - a collection of pre-finished connectors built for exposed wood applications where both structural integrity and finished appearance matter. This heavy gusseted angle reinforces right-angle timber connections while delivering the kind of clean, consistent look that suits projects where structural hardware remains visible. The black powder-coat finish and 7-gauge steel construction make it a practical choice for timber framing work that demands reliable performance without sacrificing aesthetics.

Key Features

• Connects timber and reinforces right-angle joints - purpose-built geometry keeps heavy timber connections tight and aligned, reducing movement at critical joints
• Resists uplift and diagonal forces in wood connections - engineered to handle the directional loads that can compromise timber frame integrity over time, adding long-term reliability to exposed connections
• Made from 7-gauge steel - heavy-gauge construction provides the load-bearing capacity needed for demanding timber applications without adding unnecessary bulk
• Black powder-coat finish - the pre-finished decorative coating means no on-site painting is required, giving exposed hardware a polished, intentional appearance straight out of the box
• Compatible with Simpson structural hardware - fits within a coordinated system of connectors, supporting standardization and construction economy across a full timber framing project

Why This Product

• Structural and decorative in one connector - rather than choosing between function and appearance, this angle delivers engineered load resistance alongside a pre-finished black aesthetic that is designed to be seen, making it well-suited for open timber framing and visible joint work
• Pre-finished and ready to install - the black powder-coat finish is applied before the connector reaches the job site, eliminating the extra step of field-finishing hardware in exposed applications and keeping projects moving efficiently
• Built for coordination across a project - compatibility with Simpson structural hardware means this angle can be integrated into a broader system of connectors, promoting consistency in both performance and appearance throughout a timber structure
• Heavy-gauge steel for demanding connections - 7-gauge steel construction is suited for timber-scale loads, including uplift and diagonal forces that lighter connectors may not adequately address in right-angle joints

Specifications

• Model Number: HL57GPC
• Series: HLGPC
• Brand: Simpson Strong-Tie
• Gauge: 7
• Coating / Finish: Powder Coating, Black
• Country of Origin: United States
• Installation Hardware: 1/2 in. diameter bolts

Frequently Asked Questions

What is the HL57GPC used for?

The HL57GPC is a heavy gusseted L-shaped angle designed to connect timber members and reinforce right-angle connections in exposed wood applications. It resists uplift and diagonal forces in wood connections and is suited for projects where structural hardware will be visible.

What material and finish does the HL57GPC have?

The HL57GPC is made from 7-gauge steel and features a black powder-coat finish. This pre-finished coating gives it a decorative appearance that is well-suited for ornamental and exposed applications.

What fasteners are required to install the HL57GPC?

The HL57GPC is installed with 1/2 in. diameter bolts. Always follow applicable installation guidelines to ensure proper structural performance.

Is the HL57GPC compatible with other Simpson Strong-Tie hardware?

Yes. The HL57GPC is compatible with Simpson Strong-Tie structural hardware, making it a reliable choice for projects that rely on a coordinated system of connectors for consistent performance and appearance.