National 4 In. Oil Rubbed Bronze Square Spring Door Hinge National Hardware Can be programmed with a

Can be programmed with a SDD/TKO/TCP/MVPP type tool

Creates a 1-piece roof with a 10 year limited warranty

3 hour fire door

Our acrylic formulations cure fast and are suitable for damp

The 4-pin cylinder prevents picking and the dual locking levers provide resistance against prying and hammering

National 4 In. Oil Rubbed Bronze Square Spring Door Hinge National Hardware Can be programmed with aCatalog model No. V520 series square spring door hinge. Adjustable tension. Listed for fire rated openings. Ideally suited for residential as well as commercial, industrial, and institutional uses. Manufactured with cold rolled steel. Closing speed is adjustable. Fits standard hinge cutout. Square corners.