Torque Values For Sheet Metal Screws

The minimum torsional loads shown for unified sizes are based on bs 1580 an imperial units standard.

Torque values for sheet metal screws. 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. To see the equation behind his calculator visit. Ansi mechanical hardware bolt screw torque and force design. Value fastener stocks type a type ab high low and type b sheet metal screws.

Self tapping screw pull out and torque equations. M10 over ft lbs metric fasteners nominal size or basic screw dia. Sae grade 7 133 000 psi med. In astm a574 clamp load lbs tightening torque k 0 15 k 0 17 k 0 20 coarse thread series 1 0 0730 64 0 0026 275 3 0 in lbs 3 4 in lbs 4 0 in lbs 2 0 0860 56 0 0037 388 5 0 5 7 6 7.

Sae grade 6 133 000 psi med. Sae 0 1 2 74 000 psi low carbon steel. Sheet metal screws sheet metal screws are one type of self tapping screw. Coarse fine coarse fine coarse fine coarse fine coarse fine coarse fine 4 5 2 4 8 4 3.

A short screw clamping plain metal components reaches the rated torque in only a fraction of a turn of the screw. Common screw bolt heads common workshop nuts. This calculator tool will determine the pull out force and stripping torque for self tapping screws. Fastener black book hot sheet f9.

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. Fastener black book hot sheet f10. In particular i am concerned with metrical dimensions m8 m10 and m12. Threads per inch tensile stress area sq.

They are ideal for applications with pre drilled holes and are fully threaded from under the head to the end of the thread. Sae grade 3 100 000 psi med carbon steel. 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. Grade 2 grade 5 grade 8 18 8 s s bronze brass.

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 5 120 000 psi med.