support@harrisonsupply.com (800) 521-8444 Sign In My Account Shopping Cart Shop by Manufacturers+ About Technical Tips Contact Home Technical Tips Technical Tips At Harrison Supply Co. we have leveraged our combined 100 years of experience in the parts supply industry to assemble a collection of technical tips to assist you in your product selection. From Gaskets to Latches, Handles and Hinges, we have you covered with the knowledge and know-how that you need to get the job done right, the first time. If you feel that a tip is missing from this page, or you would like to contribute your own tip, we encourage you to contact us and submit your feedback. GASKETS MEASURING FOR A GASKET Gasket mounts fall into one of four styles: screw-on, snap-in, push-in or panel gripper. Compare your gasket to the profile provided on our website. Compare thickness, width and magnet width. All standard gasket frame dimensions should be measured edge from edge even if the gasket has snap-in-darts. (Of Special Note: when measuring for custom made gaskets; screw-in style, measure edge to edge. When measuring snap-in style, measure dart to dart.) PRE- INSTALLATION TIPS Allow replacement gasket to reach room temperature before unfolding. Carry gasket by its corners and avoid squeezing folds to prevent breaking the internal magnet. Thoroughly clean the area with soap and water, to insure proper installation. LATCHES & HANDLES ADJUSTMENT A series of parallel grooves and slotted holes that will mate with another grooved area. While the screws are loose, the latch or strike can be moved the full travel of the slotted holes. When the screws are tight the grooves mate, holding the item at the proper adjustment. Using the incorrect screw size can reduce or eliminate the adjustment. A Micro turn strike can be adjusted by backing out the set screw, screwing the hook in or out, and re-tighten set screw. EDGEMOUNT This refers to a latch that mounts vertically on the side of the door as opposed to mounting on the front face of the door. Most reach-in doors have edgemount latches. EXTERNAL MOUNTING This refers to pull handles. The screws for the handles install from the front of the door. INTERNAL MOUNTING This refers to pull handles. The screws for the handles install from the inside of the door. LATCH ONLY This refers to the body of the latch which mounts on the door. LATCH COMPLETE This refers to both body and strike. MAGNETIC/MECHANICAL This refers to the catch mechanism. Some latches have a magnet that holds the door closed. Mechanical latches have a hook that holds the door closed. Some latches are both mechanical and magnetic. OFFSET Refers to the distance between the face of the unit and the front of the door. Offset will only apply to a surface mount latch. OFFSET HANDLE Is a vertical latch with a "dog leg" lever. The lever extends past the door allowing easy access in tight situations. SCREW CENTERS These are used to help identify hardware. The measurements are taken from the center of the screw holes. Straight Handle This refers to a vertical latch running flush with the edge of the door. This provides additional protection from abuse. STRIKE ONLY This refers to the catch which mounts on the face of the box. SURFACE MOUNT This refers to latches that mount horizontally on the front face of the door. HINGES ADJUSTMENT This is an area with a series of parallel grooves and slotted holes that will mate with another grooved area. While the screws are loose, the hinge can be moved the full travel of the slotted holes. When the screws are tight the grooves mate, holding the item at the proper adjustment. Using the incorrect screw size can reduce or eliminate the adjustment. CAM-RISE This refers to hinges with a self closing feature. As the door opens, the cam lifts the door. The weight of the door closes the door. EDGEMOUNT This refers to a hinge that mounts vertically on the side of the door as opposed to mounting on the front face of the door. Or the top and bottom of the door. OFFSET This is the distance between the face of the unit and the front of the hinge. PIVOT These are hinges that mount on the top and bottom of the door allowing the door to pivot open. SCREW CENTERS These are used to help identify hardware. The measurements are taken from the center of the screws holes. SPRING ASSIST HINGES These are hinges that create a self closing door. They must be used with a magnetic gasket or use a non-magnetic gasket and a magnetic latch. Do not expect the spring's power to hold a door closed or close a mechanical latch. SURFACE MOUNT This refers to hinges that mount horizontally on the front of the face of the door. EVERYTHING SHIPS FREE HARRISON SUPPLY CO. INC. 5155 West Chester Pike P.O. 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