Stanley National Hardware S748-264 CD1739 Screen Door Brace in Zinc Authorized Replacement from National Hardware Stock #N117-564 Screen Storm Door Brace Highly Durable Decorative Home Hardware That Adds A Finishing Touch To Any Room Screen door brace kit Reduces screen or storm door sag; installs on the inside of door Aluminum turnbuckle provides for adjustable tension Aluminum turnbuckle, zinc-plated rods 42-inch open length; 1-11/16-inch adjustment; 7/32-inch diameter