McKinney Template Double Acting Clamp Flange Spring Hinge - 19001 Recommended for use on trucking doorways Clamp door flange is attached to door using thru bolts and nuts Jamb flange is surface applied to jamb For 1-3/4" doors Non-handed Packed with thru bolts and machine screws If doors are extra heavy, we recommend three hinges per door. The third hinge should be installed as close as possible to the top hinge as conditions will permit for maximum support For doors subjected to severe shock, we recommend the Spring Hinge Specification Close Catalog Page 19001 Catalog Close Related Templates 505 for 8" 19001 double acting spring hinge Interested in this product? Contact us to order Related products McKinney Non-Template Double Acting Spring Hinge - 1001 McKinney Residential 3 1/2" Spring Hinge - 1502/1552 McKinney Full Surface Double Acting Door Spring - 451/452/453