National 3.5 In. Satin Nickel Square Spring Door Hinge Category_Key Holders Rust resistant zinc hardware for

Rust resistant zinc hardware for outdoor use

Includes a test lever and epoxy coated extension probe

Designed for use in situations where a waterproof membrane is not required

Tough-Cut shackle

National 3.5 In. Satin Nickel Square Spring Door Hinge Category_Key Holders Rust resistant zinc hardware forCatalog 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. Tension is adjustable. Square corners.