Simpson Strong-Tie SAI380/99/2 99mm Width x 140mm Height Concealed Hanger Pre-galv

High-Strength Concealed Joist Hanger for Timber, Steel, Masonry & I-Joists

The Simpson Strong-Tie SAI380/99/2 is a heavy-duty concealed hanger designed to provide robust support across a wide range of structural materials, including timber, steel, masonry, and I-joists. Crafted from 2.0mm pre-galvanised mild steel, this hanger offers a discreet, internal fixing design—making it suitable for applications where visual finish and structural performance are both critical.

Key Features

• Multi-Material Compatibility: Suitable for fixing into timber, steel, masonry, and I-joist headers.

• Concealed Internal Flanges: Ensures a clean, hidden finish while maintaining high structural integrity.

• Dual Fixing Capability: Can be installed using Ø5mm square twist nails and Ø13mm bolts, offering secure installation across varied substrates.

• Optimised Depth Requirement: Hanger depth must be at least 60% of the joist height to prevent rotational movement, unless additional restraint is applied at the top of the carried member.

Benefits

• Neat concealed look ideal for visible structural joinery

• Versatile application across construction types

• Strong lateral and vertical load support

• Fast, efficient installation using nails or bolts

• Long-lasting corrosion protection from pre-galvanised finish

Product Dimensions

Pack Information

• Pack Size: 1 unit

• Manufacturer Part Number: SAI380/99/2

Applications

Perfect for structural timber joists, beams, and I-joists in residential, commercial, and hybrid construction. Suitable for both standard and concealed finish installations where aesthetics and strength must align.

Important Notes

• Ensure hanger depth covers at least 60% of joist height unless a lateral restraint is provided.

• Always use approved fasteners for specific substrates to maintain compliance with structural performance standards.