[draw] design hole for self-tapping screws

[eugeniobene]

I never had to deal with self-tapping screws before. for this I was wondering if, in the drawing, for the hole I have to behave as for a standard screw, then make a threaded hole not completely, or in a different way. I wonder why the fact of not threading a hole does not completely have its reason, that is the tool that threaded does not have to collide with the piece. but with self-tapping this need does not exist, hence my doubt

 

[MassiVonWeizen]

Maybe this can help youhttp://bestdesigner.altervista.org/material/tabelle fori per automates (1).pdforhttp://www.wuerth.it/html/catalogo/articoli/002/002289.pdfbut if I do not remember badly even in the regulations of the various screws is indicated the diameter of the hole

 

[PierArg]

Hi.
in addition to the material that has placed you massive, try to consult the baldassini.

 

[carlo alberto 21]

Bye.
I joined the forum a few days ago.
This is the only argument I've ever had.
you wouldn't know how to tell me the rules for pre holes for self-tapping screws for plastic.
Thank you.

 

[TECNOMODEL]

more than a standard, in my opinion, you should consult the catalog of the screws.
should indicate the preforum to be made on plastic.

 

[carlo alberto 21]

on the catalog of the supplier is not written, you would know to tell me a catalog of some viteria where it is present.
Thank you.

 

[TECNOMODEL]

http: //www.psmcelada.it/dowload/cataloghi/catalogo viti pt.pdf

 

[carlo alberto 21]

grazie:36_1_11:

 

[MassiVonWeizen]

mark this link where there is also a card regarding autoflowering screws (after registration). now I don't have the password to check how the card is structured, but I hope it will be usefulhttps://www.bossard.com/it/engineering/fastener-expert-tools.aspx

 

[carlo alberto 21]

Thanks :36_1_11: