The SS4502 is a stainless steel door hinge 4.5x4.5 designed for commercial doors that require added security and long-term durability. This hinge features square corners, a plain bearing 5-knuckle design, and a non-removable pin (NRP) that prevents hinge pin removal on outswing doors.

Made from corrosion-resistant stainless steel, the SS4502 is ideal for schools, apartments, offices, and exterior doors where tamper resistance is required. It fits standard 4.5″ × 4.5″ commercial hinge templates and includes both wood and machine Phillips flat-head screws.

Specifications: • Size: 4.5″ × 4.5″ • Corner Type: Square corner • Pin Type: Non-removable pin (NRP) • Material: Stainless steel • Hinge Design: 5 knuckles (plain bearing) • Gauge: Commercial weight • Screws Included:    • #12 × 1/2″ machine screws    • #12 × 1-1/4″ wood screws • Use: High-security commercial or residential doors • Model: SS4502 • Equivalent To: Hager 1979 NRP, Stanley FBB191 NRP (plain bearing equivalent)

Related Products: • SS4500 – 4.5x4.5 Stainless Steel Hinge, Square Corner (Plain Bearing) • SS4501 – 4.5x4.5 Stainless Steel Hinge, Square Corner, Ball Bearing • SS4504 – 4.5x4.5 Stainless Steel Hinge, Square Corner, Ball Bearing, NRP • Stainless Steel Hinges Category