The Simpson A21 2 in. x 1-1/2 in. x 1-3/8 in. Galvanized Angle by Simpson is a compact, dependable 18-gauge steel connector designed to reinforce 90 deg. corner joints across a wide range of DIY and home repair applications. Where angled nailing or screw fastening alone leaves connections vulnerable, this metal angle bracket steps in to deliver stronger, more consistent results - helping ensure corners come out straight and hold firm. The G90 zinc galvanized coating adds a layer of corrosion resistance that makes this angle connector a practical choice for projects where moisture may be a concern.

Key Features

• Versatile connector for various 90 deg. connections and home repair projects - works across a broad range of general carpentry and DIY tasks, so you can reach for one reliable solution in multiple situations
• Stronger than angled nailing or screw fastening alone - the metal angle distributes load across the joint, giving you a more structurally sound connection than traditional fastening methods provide on their own
• Helps ensure joints are consistently straight and strong - the rigid angle acts as a built-in guide, reducing the guesswork of achieving a true 90 deg. corner by hand
• Made from 18-gauge steel - provides a sturdy, reliable base for light-duty jobs and everyday home repair without unnecessary bulk
• Galvanized (G90) for extra corrosion resistance - the zinc galvanized finish helps protect against rust in environments where some moisture exposure is present

Why This Product

• A smarter alternative to fastening alone - rather than relying on toenailed screws or angled nails to hold a corner together, this steel angle connector creates a connection proven to be stronger, giving you confidence in the integrity of your finished project
• Built for consistent, straight corners every time - the rigid bracket geometry takes the uncertainty out of 90 deg. joinery, making it easier to achieve professional-looking results on repair work, framing tasks, and general home projects alike
• Corrosion-resistant construction for real-world conditions - the G90 zinc galvanized coating is suited for projects where moisture is present, extending the service life of the connection without requiring an upgrade to a heavier-duty finish for typical interior or light exterior use
• Made in the United States by a trusted connector brand - Simpson backs this angle with the engineering and quality standards the brand is known for, making it a dependable pick for DIYers and repair professionals who want a reliable metal connector without overcomplicating the job

Specifications

• Model Number: A21
• Width 1: 2 in.
• Width 2: 1-1/2 in.
• Length: 1-3/8 in.
• Gauge: 18
• Coating/Finish: Zinc Galvanized, G90
• Install With: Install with 10d x 1-1/2 in. nails or #9 x 1-1/2 in. Strong-Drive SD screws (sold separately)
• Country of Origin: United States

Approved Applications

• DIY/Home Projects

Frequently Asked Questions

What fasteners are recommended for installing the Simpson A21 angle?

The A21 should be installed with 10d x 1-1/2 in. nails or #9 x 1-1/2 in. Strong-Drive SD screws for a secure and code-consistent connection.

Why use a metal angle connector instead of just nailing or screwing at a corner?

The A21 creates a connection that is stronger than angled nailing or screw fastening alone, and it helps ensure joints are consistently straight and strong - saving time and reducing the frustration of trying to achieve a perfect 90 deg. corner by fasteners alone.

Is the Simpson A21 suitable for outdoor or moisture-exposed applications?

The A21 features a G90 zinc galvanized coating that provides extra corrosion resistance, making it a suitable choice for projects where some exposure to moisture is present. For more demanding outdoor environments, Simpson Strong-Tie also offers ZMAX zinc-coated connectors (identified by a "Z" at the end of the model number) for enhanced protection.

What gauge steel is the Simpson A21 made from?

The A21 is made from 18-gauge steel, providing a sturdy and reliable connection for light-duty jobs and general home repair projects requiring a solid 90 deg. angle joint.

Related Products

• Nails 0.148" x 1-1/2"
• #9 x 1 1/2"

Note: Product dimensions and/or Nail or Bolt holes may differ from picture. See item description for specifications.