ASA strike plate</br>3-1/4-inch diameter trim</br>Cylindrical construction for enhanced durability</br>2-3/4-inch fixed backset latch</br>Three hour UL listing</br></br>Product Description</br></br>For exterior locking applications?? entry door. Six pin Schlage C compatible cylinder standard. Clutch feature. Meets ANSI/BHMA A156.2?? grade 2 standards. Removable thru-bolts.</br><br/>http://www.amazon.com/gp/product/B007XZVEQ4