Strength usually does not mix with Flexibility. Not in the case of the Hercular, since it is the only Grade 1 Deadlock with an adjustable backset.ANSI Grade 1 Locking Mechanism. Adjustable Backset (2 3/8", 2 3/4"). UL437 Drill and Pick Resistance Cylinder. Bump Resistant High Security Lock Cylinder. MUL-T-LOCK's Patented Interactive® Key Control System. Cylinder Plug & Bolt Finish: Bright Brass or Satin Chrome. Available in Classic, Interactive+, MT5 ® Keyway. This item is in the category "Business & Industrial\Facility Maintenance & Safety\Access Control Equipment\Locks\Other Locks".locks" and is located in this country: US. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech Republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, Sweden, Korea, South, Indonesia, Taiwan, South Africa, Thailand, Belgium, France, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi Arabia, United Arab Emirates, Qatar, Kuwait, Bahrain, Croatia, Republic of, Malaysia, Brazil, Chile, Colombia, Costa Rica, Panama, Trinidad and Tobago, Antigua and Barbuda, Aruba, Belize, Dominica, Grenada, Saint Kitts-Nevis, Saint Lucia, Montserrat, Turks and Caicos Islands, Barbados, Bangladesh, Bermuda, Brunei Darussalam, Bolivia, Ecuador, Egypt, French Guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Cayman Islands, Liechtenstein, Sri Lanka, Luxembourg, Monaco, Macau, Martinique, Maldives, Nicaragua, Oman, Peru, Pakistan, Paraguay, Reunion, Vietnam, Uruguay, Guatemala, Honduras, Jamaica.