• Heavy Surface Hinge, Plain Steel ~ 3" x 3" $ 2.70

The National Hardware N147-884 is a 4" x 4" heavy surface hinge designed for welding applications on metal surfaces. The tight pin design provides added security by preventing pin removal.

• 4" x 4" dimensions for standard door applications
• Cold rolled steel construction
• Non-removable tight pin for security applications
• Non-swaged hinge design for surface mounting by welding
• Five knuckle, full mortise design
• Plain steel finish - can be painted or left bare
• Ideal for metal gates, security doors, and industrial applications

Installation: This hinge is designed for surface application by welding to metal - not for screw mounting.