What’s the formula to find torque required for screwing machine screw to plastic boss & also to metal inserts
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What’s the formula to find torque required for screwing machine screw to plastic boss & also to metal inserts
[QUOTE=bt.darshan;5434]What’s the formula to find torque required for screwing machine screw to plastic boss & also to metal inserts[/QUOTE]
See: [URL="http://www.engineersedge.com/fastener_thread_menu.shtml"]Fastener and Screw Torque Design Menu[/URL]
Specifically see:
[URL="http://www.engineersedge.com/thread_strength/thread_bolt_stress.htm"]Thread Pull out force and torque[/URL]
[URL="http://www.engineersedge.com/thread_strength/thread_minimum_length_engagement_fed-std-h28.htm"]Minimum thread engagement[/URL]
[URL="http://www.engineersedge.com/thread_stress_area_a.htm"]Bolt stress area[/URL]
[SIZE=5][SIZE=4][B][url]http://www.engineersedge.com/calculators/torque_calc.htm[/url][/B][/SIZE][/SIZE]:)