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Thread Data Charts-UNEF Screw Threads per ANSI B1. 1 UNEF = Unified National Extra Fine This is one of three graded series: UNC (Unified National Corase); UNF (Unified National Fine); and UNEF (Unified National Extra Fine) The Nominal Major Diameter and Threads-per-inch (Pitch) are defined by ANSI ASME B1 1 and are the choices for the customary Unified screws and nuts
UNF THREAD CHART - Amesweb General Note: All dimensions expressed in inches Supplements: Thread calculators and charts ASME UN screw thread calculator Reference: ASME B1 1-2003, Unified Inch Screw Threads (UN and UNR Thread Form) Oberg, E , Jones ,F D , Horton H L , Ryffel H H , (2016) Machinery's Handbook 30th edition Industrial Press Inc
UNIFIED SCREW THREADS (UNC UNF UNEF) size chart - ARMPRO The size chart is calibrated based on the major diameter, threads per inch, tap drill size and the pitch of the screw thread The below-given chart can be used to choose the right unified screw thread that you will need for your task
UN imperial screw thread calculator - Theoretical Machinist The thread series is generally relative to the outside diameter of the screw 20 threads per inch on a 1 4" diameter screw is considered coarse: 1 4-20 UNC On a 3 4" diameter screw, 20 threads per inch is considered extra-fine: 3 4-20 UNEF
Unified Thread Standards: UNC UNF Size Charts Specifications Convert between metric and SAE (inch) wrench sizes with this comprehensive comparison chart Find the closest equivalent sizes for your tools, whether working with US standard (SAE) or metric fasteners The Engineering ToolBox provides a wide range of free tools, calculators, and information resources aimed at engineers and designers