National N350-793 4" Spring Door Hinge - Oil Rubbed Bronze (V520)
• Manufactured with cold-rolled steel
• Closing speed is adjustable
• Fits standard hinge cutout
• Tension is adjustable
• Square corners
National N350-793 4" Spring Door Hinge - Oil Rubbed Bronze (V520). Manufactured with cold-rolled steel. Closing speed is adjustable. Fits standard hinge cutout. Tension is adjustable. Square corners. Hinge is UL approved for fire doors.