The SS4403 is a stainless steel door hinge 4x4 designed for commercial and residential doors that require added security. It features square corners, a sturdy 5-knuckle design, and a non-removable pin (NRP) that prevents tampering on outswing doors. This makes it ideal for schools, apartments, offices, and other high-traffic environments.

Made from corrosion-resistant stainless steel, the SS4403 is compatible with standard commercial templates and includes both wood and machine Phillips flat-head screws for easy installation on metal or wood doors. Its durable construction provides long-term performance in interior and exterior applications.

Specifications: • Size: 4″ × 4″ • Corner Type: Square corner • Material: Stainless steel • Pin Type: Non-removable pin (NRP) • Hinge Design: 5 knuckles • Gauge: Commercial weight • Screws Included:    • #12 × 1/2″ machine screws    • #12 × 1-1/4″ wood screws • Use: Commercial/security applications • Model: SS4403 • Equivalent To: Hager 1161 NRP, Stanley F179 NRP  

Related Products: • SS4400 – 4x4 Stainless Steel Door Hinge, 1/4″ Radius • SS4401 – 4x4 Stainless Steel Door Hinge, Square Corner • SS4402 – 4x4 Stainless Steel Door Hinge, 1/4″ Radius, NRP • SS4404 – 4x4 Stainless Steel Door Hinge, Square Corner, NRP (Commercial Weight) • Stainless Steel Hinges Category