Andrew* Posted November 7, 2007 Share Posted November 7, 2007 How do you do your pier bolts? I was intending to submerge 1 foot of M12 zinc plated steel studding in the concrete while it's setting. Will this be sturdy enough, or will it be much sturdier if I let the concrete set, then drill holes and put in one of those fancy masonry anchor bolts?By the way, it will be secured with three bolts and I need them to protrude at least 5cm.Advice appreciatedAndrew Link to comment Share on other sites More sharing options...
centroid Posted November 7, 2007 Share Posted November 7, 2007 Zinc plated M12 studding is what I used, and put a couple of nuts and big washers on the ends that went into the concrete.Made a template of the four holes in the bottom plate of the pier, and with a front and back-nut, secured each of the four studs to the template.It was then just a matter of supporting it at the right and position, with some lengths of wood, pour in the concrete, and let it set. Job done!!.The other alternative is to do as Mike (yfronto) did, and drill the holes in the concrete, once set, and chemically bond the studs in.HTH.Dave Link to comment Share on other sites More sharing options...
Jeff RV Posted November 7, 2007 Share Posted November 7, 2007 I just bent 1 metre lengths at right angles and added some metal ties to keep the position, but this could be made of wood or something as long as the thread is down a good bit in the concrete.Jeff. Link to comment Share on other sites More sharing options...
Andrew* Posted November 7, 2007 Author Share Posted November 7, 2007 excellent - cheers. Link to comment Share on other sites More sharing options...
Jeff RV Posted November 7, 2007 Share Posted November 7, 2007 Here is a pic of the way i went about it.Jeff. Link to comment Share on other sites More sharing options...
Andrew* Posted November 7, 2007 Author Share Posted November 7, 2007 I saw your thread, but didn't get a close up. cheers.I'll bulk up some 12mm steel studding with washers/nuts etc. and/or bend them and get them secured in place. Just as long as it will do the job and won't budge. cheersAndrew Link to comment Share on other sites More sharing options...
George Posted November 7, 2007 Share Posted November 7, 2007 Here's how i did mine, I used the base plate itself as a bolt template with a block of wood to support with enough space underneath to actually be able to bolt the mount on top when set. A couple of piccys show better than words A dry run (this top plate was scrapped as not being wide enough)The bits for concreating in ( flat bits to stop bolts from twisting when set)Polar aligned and supportedFinished jobbyVoila Link to comment Share on other sites More sharing options...
Kai Posted November 7, 2007 Share Posted November 7, 2007 I did mine pretty much the same way as well Link to comment Share on other sites More sharing options...
Astroman Posted November 7, 2007 Share Posted November 7, 2007 I placed 3/4" PVC pipe, about 6" each, in the curing concrete, working it so I could remove it when the concrete finished curing. Then, pulled the PVC out and epoxied the bolts in. No worries. Link to comment Share on other sites More sharing options...
Helen Posted November 7, 2007 Share Posted November 7, 2007 Now that's a good idea Astroman! saves drilling the concrete for the bolts Helen Link to comment Share on other sites More sharing options...
Astroman Posted November 7, 2007 Share Posted November 7, 2007 Now that's a good idea Astroman! saves drilling the concrete for the bolts HelenRight. Plus, it gives a little wiggle-room for the form. Link to comment Share on other sites More sharing options...
SteveA Posted December 31, 2007 Share Posted December 31, 2007 Looks like a lovely job....did you make those mounting plates yourself ?...they are just what I need ! Link to comment Share on other sites More sharing options...
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