ZMAX Simpson Strong-Tie Strap Tie 1-1/2" x 18"

The ZMAX Simpson Strong-Tie ST18 Strap Tie delivers exceptional strength and corrosion resistance for a wide range of structural connections. Manufactured from 16-gauge steel and coated with Simpson’s ZMAX® galvanization, this 1-1/2" × 18" strap tie is engineered to resist tension, uplift, wind and seismic forces. Its pre-cut nail holes and staggered pattern speed installation while reducing wood splitting, making it ideal for both light repairs and heavy-duty framing projects.

Whether reinforcing truss-to-wall connections, tying rafters or anchoring joists, the ST18 provides reliable performance in exposed environments—from residential decks to commercial structures near coastal areas.

Key Features

• Engineered for wind, seismic and uplift resistance
• ZMAX® corrosion-resistant coating for extended service life
• Precision-staggered, pre-cut nail holes to prevent wood splitting
• 16-gauge steel construction for durable, heavy-duty support
• 1-1/2" width and 18" length for versatile applications
• Ideal for truss-to-beam, rafter-to-wall and joist-to-ledger connections

⚠️ WARNING: This product can expose you to Tetrabromobisphenol A known to the State of California to cause cancer and Epichlorohydrin known to cause birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.