[TowerTalk] Screws used in Element Construction

[jimlux]

On 5/9/19 12:19 AM, terry burge wrote:
> Hi Garry,
> 
> Using rivets and a hand rivet tool can work quite well and does a nice, clean job. Maybe just use a slotted end with hose clam on each end tube for adjustment. I have a 6 meter first director that a friend made for me on my Steppir antenna and it really looks great.
> 

thinking about rivets and other "permanent" assembly techniques (yes, 
you can drill the rivets out)..what about using conductive epoxy to 
assemble an antenna?


>> I am rebuilding a 17 meter beam I built about 35 years ago. At the time I used slots and hose clamps where fastening element sections together but this time I am going to use sheet metal screws. My tubing sizes will taper from 1.125" down to .625" in 5 sections per side.
>> I can't find any information on what size screws to use unless I'm just looking over it. I have seen a recommendation to use hex head screws rather than typical flat blade or phillips head due to possible damage to the screw head but nothing on screw size. I also wonder if self tapping would be a better option than standard sheet metal type.

#2 or #4?

You could also use hex socket cap screws - rather than a nut driver, you 
use an Allen wrench