The SS4503 is a stainless steel door hinge 4.5x4.5 designed for high-security, high-traffic commercial applications. It features square corners, two ball bearings for smooth and quiet door operation, and a non-removable pin (NRP) that prevents tampering on outswing doors.
Made from corrosion-resistant stainless steel, this hinge provides long-term durability for offices, schools, apartments, public buildings, and exterior doors. The removable stainless steel pin is secured by the NRP mechanism, offering added protection against forced pin removal. The hinge 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
• Bearing Type: Two ball bearings
• Pin Type: Non-removable pin (NRP)
• Material: Stainless steel
• Hinge Design: 5 knuckles
• Gauge: Commercial weight
• Screws Included:
• #12 × 1/2″ machine screws
• #12 × 1-1/4″ wood screws
• Use: High-security, high-traffic commercial or residential doors
• Model: SS4503
• Equivalent To: Hager BB1979 NRP, Stanley FBB191 NRP
Related Products:
• SS4501 – 4.5x4.5 Stainless Steel Hinge, Square Corner, Ball Bearing
• SS4502 – 4.5x4.5 Stainless Steel Hinge, Square Corner, NRP
• SS4504 – 4.5x4.5 Stainless Steel Hinge, 1/4″ Radius, Ball Bearing, NRP
• Stainless Steel Hinges Category
SS4503 – Stainless Steel Door Hinge 4.5x4.5, Square Corner, Ball Bearing, NRP
Inches: 4-1/2" x 4-1/2"
Millimeter: 114.3 x 114.3
