BHMA A156-7:2016 pdf download.AMERICAN NATIONAL STANDARD FOR TEMPIATE HINGIE DIMENSIONS
2.1 Scope This Standard covers the requirements for the length, width, thickness, offset, and screw hole spacing for builders template hinges. Included in the standard are hinge identification symbols and screw sizes. Methods for identifying template hinges that conform to the Standard are provided.
2.2 Classification This Standard covers the following types of builders template hinges:
2.2.1 Full mortise hinge A hinge designed for mortising into the butt edge of the door and into the rabbet edge of the door frame. Used generally with steel frames and steel doors.
2.2.2 Full surface hinge A hinge designed to be applied to the surface of the door and the surface of the door frame. Used generally with channel iron frames and metal covered doors.
2.2.3 Half mortise hinge A hinge designed to be mortised into the butt edge of the door and applied to the surface of the door frame. Used generally with channel iron frames and steel doors.
3.2 Types, Sizes, and Dimensions The types, sizes, and dimensions of the hinges covered by this standard shall be as specified in Figures 1 through 24. The figures are for ilustration only to assist in identifying the hinge types and in locating dimensions. All dimensions are in inches and millimeters. The figures do not show requirements for the design, type of bearings, or contour of the offset. The tolerances for the specified dimensions shall be as follows
3.2.1 Variable dimensions The offset dimensions and machine screw sizes are included with the template dimensions for each hinge. Hinges that are represented as conforming to this Standard and which comply with the template dimensions but vary in the recommended screw sizes, shall be accompanied by information clearly describing the variation. The off-sets shown herein for half surface, half mortise and all swing clear hinges may be smaller or greater according to the individual manufacturer's regular practice, provided that the widths of affected leaves are changed to conform with any increase or decrease in offset. The template dimensions shall not be affected by such modifications.
3.4 Half Surface, Full Surface and Half Mortise Hinges The surface leaves of full surface,half surface and half mortise hinges shall have beveled edges. The mortise leaves of half mortise and half surface hinges shall have straight edges and square or radius corners.BHMA A156-7 pdf download.