Simpson MASA Mudsill Anchor by Simpson is a 16-gauge G90 galvanized steel mudsill anchor engineered as a high-capacity, time-saving alternative to traditional anchor bolts for 5/8-in. and 1/2-in. mudsill anchor bolt applications on 2x, double-2x, and 3x mudsills. The MASA attaches directly to standard concrete forms, lays flat on the form board, and eliminates the need for 3-in. square plate washers in seismic design - delivering load capacities that in some cases meet or exceed the parallel and perpendicular to plate shear capacity of other cast-in-place anchors.

Key Features

• Attaches easily to the concrete form for quick installation
• Lays flat on the form board so there is no anchor bolt to finish around
• No labor costs involved in drilling plates and aligning holes
• Flat design eliminates chances of modification in prefabricated walls
• Eliminates the need to notch studs due the anchor bolts being placed where it will interfere
• Reduces the chance of having to retrofit anchors because of missing or misplaced anchor bolts
• Minimum MASA end distance is 4 in. and minimum center-to-center spacing is 8 in. for full load
• Made from 16-gauge steel
• Galvanized (G90) for extra corrosion resistance

Specifications

• Model No.: MASA
• Gauge: 16
• Coating: Zinc Galvanized, G90
• Finish: Zinc Galvanized, G90
• Install With: 0.148 in. x 1-1/2 in. nails
• Country of Origin: United States

Frequently Asked Questions

What mudsill sizes is the MASA anchor compatible with?

The MASA anchor is designed as a greater load-carrying capacity alternative for 5/8-in. and 1/2-in. mudsill anchor bolts on 2x, double-2x, and 3x mudsills.

Does the MASA anchor eliminate the need for square plate washers in seismic design?

Yes. The MASA eliminates the need for 3-in. square plate washers for seismic design and, in some cases, has load capacities that meet or exceed the parallel and perpendicular to plate shear capacity of other cast-in-place anchors.

What fasteners are used to install the MASA anchor?

The MASA anchor is installed with 0.148 in. x 1-1/2 in. nails, which secure it to the concrete form board prior to the concrete pour.

What is the difference between the MASA and the MASAP?

Two versions are available - the standard MASA is designed for installation on standard forms, while the MASAP is designed for use with panelized forms.