Torque Values For Sheet Metal Screws

Sae grade 5 120 000 psi med.

Torque values for sheet metal screws.

Sae grade 3 100 000 psi med carbon steel. Fastener black book hot sheet f10. Coarse fine coarse fine coarse fine coarse fine coarse fine coarse fine 4 5 2 4 8 4 3. The minimum torsional loads shown for unified sizes are based on bs 1580 an imperial units standard.

Value fastener stocks type a type ab high low and type b sheet metal screws. To see the equation behind his calculator visit. Sae grade 6 133 000 psi med. A short screw clamping plain metal components reaches the rated torque in only a fraction of a turn of the screw.

Grade 2 grade 5 grade 8 18 8 s s bronze brass. In particular i am concerned with metrical dimensions m8 m10 and m12. Ansi mechanical hardware bolt screw torque and force design. 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.

Sae 0 1 2 74 000 psi low carbon steel. They are ideal for applications with pre drilled holes and are fully threaded from under the head to the end of the thread. The torque rate can vary considerably for the same diameter of screw. M10 over ft lbs metric fasteners nominal size or basic screw dia.

Fastener black book hot sheet f9. Torque values for stainless steel and non ferrous fasteners bolt silicon monel brass 2024 t4 size dry lubricated dry lubricated bronze aluminum 2 56 2 5 in lbs 2 1 in lbs 2 6 in lbs 2 2 in lbs 2 3 in lbs 2 5 in lbs 2 0 in lbs 1 4 in lbs 2 64 3 2 6 3 2 2 7 2 8 3 1 2 5 1 7 4 40 5 2 4 4 5 5 4 7 4 8 5 3 4 3 2 9 4 48 6 6 5 6 6 9 5 9 6 1 6 7 5 4 3 6. Sae grade 7 133 000 psi med. Sheet metal screws sheet metal screws are one type of self tapping screw.

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. Tightening torque in lbs through m8. Self tapping screw pull out and torque equations. Threads per inch tensile stress area sq.

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. Common screw bolt heads common workshop nuts.