Zohra Yusuf’s terse curtain raiser, written on the eve of AdAsia 89, outlines what the public needed to know about this spectacular event.
Do keep in mind that, in the end, a total roof shingle replacement or installation over old shingles (if your roof can withstand the weight) is best enlisted to a pro unless you’re comfortable walking on the roof. Individual shingle replacement as part of regular maintenance, however, can be a do-it-yourself task for certain types of shingles, in case that sways your final pick.
I took out hundreds of screws today by hand. totally possible, but I can see why those electric screwdrivers are popular 
Good article though, always fun to examine something we take for granted.
Carriage bolts will work for certain extrusion profiles, but not all, because the torque from tightening might direct forces where the extrusion wasn’t designed for. For example: the 15mm Misumi 3-series shown in the article only has about 1mm worth of top lip where a carriage bolt would engage. It won’t be able to take as much torque as the rail. It’s worth keeping carriage bolts in mind, they just has to be used in the right places.
While there are many international examples to speak of, in the Pakistani sphere, there are two areas in particular where this strategy has worked exceptionally well for brands. The first is food (the industry in which I currently work) where influencer recommendation and/or criticism can pretty much make or break a business.
Damn. That’s such a stupid simple solution I’m not surprised at all I never thought of it. Haha. Great trick!
Fast forward to the present, where my favourite columnist, Nicholas Kristof, in a recent article wrote: “Millennials want to work for ethical companies, patronise brands that make them feel good and invest in socially responsible companies… doing good is no longer a matter of writing a few checks [cheques] at the end of the year, as it was for my generation; for many young people, it’s an ethos that governs where they work, shop and invest.” (New York Times, January 24, 2018)
Regardless, if you need remove panels to replace or repair your roof, call a NABCEP-certified solar installer to have the job done right. If you have a PPA or lease contract with an installer, look in your contract to see if they have any rules about who can do the work, or whether they’ll do it for you. The panels are their property after all.
The Sheetite screw is designed to connect two or more sheets placed one atop of the other, with a total thickness of 0.5 times the nominal diameter of the fastener or less. The sheets can be made of steel, aluminum, magnesium or other metals. The diameter of the predrilled holes in the sheets is flexible, so the process and assembly parameters can be adjusted optimally to each application.
Polyolefins, styrene-derived polymers and plasticized polyvinyl chloride are commonly used by toy manufacturers. “Acrylonitrile butadiene styrene (ABS) is also frequently used in the toy industry,” claims Uwe Peregi, executive vice president and general manager at Herrmann Ultrasonics Inc.
They look like some of the flattop panheads that I’ve got around here. The tops of these screws are like pancakes, flat top and bottom with slightly rounded sides. They look exactly like that. I’ve got some in both 6-32 and 3mm.
The fastener has a wide, flat head; a relatively thick shank; and a pointed tip. The head can be designed for external or internal drive systems (including hex head, TORX, TORX plus and cross recesses), and the bottom surface of the head can be undercut. The shank is divided into three zones: a pointed, unthreaded tip (for drilling); a short partially threaded midsection (for thread-forming); and a fully threaded upper section (for applying clamp load).
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