Torque Values For Sheet Metal Screws

Sheet metal screws sheet metal screws are one type of self tapping screw.

Torque values for sheet metal screws.

Recommended torque values for socket head screws flat head screws set screws button head screws shoulder screws stainless steel and non metal fasteners like brass aluminium and bronze buy now. To see the equation behind his calculator visit. Common screw bolt heads common workshop nuts. Sae grade 6 133 000 psi med.

Threads per inch tensile stress area sq. Ansi mechanical hardware bolt screw torque and force design. M10 over ft lbs metric fasteners nominal size or basic screw dia. Sae 0 1 2 74 000 psi low carbon steel.

The torque rate can vary considerably for the same diameter of screw. Sae grade 3 100 000 psi med carbon steel. Sae grade 7 133 000 psi med. Value fastener stocks type a type ab high low and type b sheet metal screws.

Fastener black book hot sheet f9. Grade 2 grade 5 grade 8 18 8 s s bronze brass. Tightening torque in lbs through m8. Fastener black book hot sheet f10.

Sae grade 5 120 000 psi med. As in the title i need some indication about the optimal tightening torque to choose when screwing in a ss screw a2 70 say into an aluminium threaded hole. They are ideal for applications with pre drilled holes and are fully threaded from under the head to the end of the thread. Mended torque of the screw dimension and quality in ques tion measured from the snug level the point at which the components and the screw head become tight.

In particular i am concerned with metrical dimensions m8 m10 and m12. The minimum torsional loads shown for unified sizes are based on bs 1580 an imperial units standard. A short screw clamping plain metal components reaches the rated torque in only a fraction of a turn of the screw. Self tapping screw pull out and torque equations.

Due to the fact that fastening applications differ greatly the above information is for guidance only and is correct to the best of our knowledge. This calculator tool will determine the pull out force and stripping torque for self tapping screws.