I just found a company that has a very large selection of self tapping screws and bolts. And lots of technical data.
https://www.dynamicfastener.com/wp-content/uploads/2020/04/2020-Hand-Guide-MAPP-small.pdf This is the link to their catalog. Otherwise just lookup dynamic fastener. Jay > On Oct 17, 2020, at 3:23 PM, Jay <[email protected]> wrote: > > > Hi Jerry > > I thought about it. > But they are $5 each > Not rated for L feet > Have 4 holes vs 1 hole > There is no underlayment as it’s a barn > > Using polybutylene tape and or caulk, it’s a pretty solid way to keep water > out and with the self tapping bolts is more secure to me ( thanks Allan). > > The parts that William suggested are designed for metal roof over wood > substructure, not applicable in this case. > > I’ll just look for the right self driving lag bolt > > Jay > > > > >>> On Oct 17, 2020, at 1:53 PM, Jerry Shafer <[email protected]> wrote: >>> >> >> Why puncture the metal can't S-5 be used. >> Jerry >> >>> On Sat, Oct 17, 2020, 12:42 PM Jay <[email protected]> wrote: >>> What do people recommend for a metal roof ( with flat sections, not >>> corrugated)on 3/16” thick x 2” wide C channel for attaching L feet >>> >>> Self taping fasteners would be the easiest. Doing a nut and bolt would be >>> possible but quite time consuming. >>> A machine self taping bolt and then adding a nut would be a lot easier than >>> nut and bolt. >>> >>> But that is my question. Is a self taping screw enough or does it need to >>> be bolted? >>> >>> Jay >>> Peltz power >>> >>> >>> >>> _______________________________________________ >>> List sponsored by Redwood Alliance >>> >>> List Address: [email protected] >>> >>> Change listserver email address & settings: >>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >>> >>> There are two list archives for searching. When one doesn't work, try the >>> other: >>> https://www.mail-archive.com/[email protected]/ >>> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >>> >>> List rules & etiquette: >>> http://www.re-wrenches.org/etiquette.htm >>> >>> Check out or update participant bios: >>> http://www.members.re-wrenches.org >>> >> _______________________________________________ >> List sponsored by Redwood Alliance >> >> List Address: [email protected] >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> There are two list archives for searching. When one doesn't work, try the >> other: >> https://www.mail-archive.com/[email protected]/ >> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >> >> List rules & etiquette: >> http://www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> http://www.members.re-wrenches.org >>
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