Due to facility maintenance, orders placed between May 11th and May 21st will not be shipped until May 22nd.  


We apologize for any inconvenience.


Pentagon Attachment Systems

Pentagon Protection USA is part of a group of companies that specialize in blast mitigation, storm protection and criminal intrusion protection. Our mission is to help save lives, reduce injuries and protect property using cost effective and affordable solutions. With patented products such as Z-Lok for commercial doors, Advanced Elite and GSS for windows, and Residential Elite for homes, we offer a wide variety of systems to help protect your glass. To order the attachment system, please visit