Transcription of Machine Screws Thread Dimensions - FasNet™ Direct
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Machine Screws78 LLAxis of screw Thread BasicmajordiameterMinordiameterBasicpitc hdiameterThread DimensionsaTensile strength values are based on 60,000 psi. and apply to carbon steel Screws and SEMS only. Hex and Hex Washer head Machine Screws of sufficient length may be wedge tensile tested. Other head styles may be axial tensile tested. 2A Ex tE r nA l th rE Ad s f o r MA c h i nE sc rE w s A n d sEMsASME B (2002)Nominal Size & Threads per InchSeries DesignationAllowanceMajor DiameterPitch DiameterStress Area, in2 Tensile Strength,a lb.
A straight shank fastener with external threads designed to go through a hole or nut that is pre-tapped to form a mating thread for the screw.
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American National, Unified Screw Threads, Standards, FEDERAL STANDARD SCREW-THREAD, FEDERAL STANDARD SCREW-THREAD STANDARDS FOR FEDERAL SERVICES, Screw, Thread Standards and Definitions, Software for Calculation of Screw Threads, Cutting, Thread, Standard Specification for Steel Tapping Screws, Insert Systems