Not much left to say but, from a "selfbuilders" angle: I'd use roofing battens as they're treated, (and not unnecessarily planed, so possibly an economic choice) and pre-drill them down the centre-ish with short spacing ... can be done fast, outside on the path/bank etc ... Doesn't matter if you don't use every hole, you get some choice when you get to firing in the TEKs, and you won't have to worry about splitting
As per my earlier post I use them for alsorts, I’ve just fixed a hook up socket to the chassis with some easy to drive with a normal battery drill. I prefer the bolt head ones as the bit fits better and they will still counter sink in soft wood. I have found the stainless tend to snap https://www.screwfix.com/c/screws-n...redirect-_-screwsfixings-_-selfdrillingscrews
Just butting in quickly. Not read everything yet. We use tec self drilling hex head screws to fasten under trays and exhaust heat shields to the bottom of vans at work. They go through chassis legs no problem. I use a dewalt battery impact driver
Impact driver, not hammer drill. I use my DeWalt impact driver a lot, just make sure that you keep the driving bit in good contact with the screw or it will damage the screw head.
I don't know about the technical bits of an impact driver except they work very well and are capable of driving screws in with relative ease. My DeWalt will certainly drive screws though 4 inch wooden posts without a pilot hole....providing good quality screws are used and good contact is kept between driver and screw. They are also ideal for undoing/doing up bolts and nuts with the correct size socket driver.
Ah, it's a rattle gun then. I'd never have thought a rattle gun would be useful for drilling holes in steel, more like the best way to wreck the cutting edge of a TEK screw. shows what I know!
They are great for taking off wheel nuts etc but if I heard one on one of my sites someone is getting a flea in the ear. which means it’s probably perfect for your use. bolt, hex or torx head for the win.
We've sat and talked ***** a few times but I have no idea what you do for a living or what your sites are! Don't tell me though, you have a camper, you sleep a lot and eat, that's all I need to know.
I got a dewalt 18v drill and impact driver with 2 batteries for about £150. Not big enough to take wheel nuts off but perfect for smaller nuts and bolts or screws and great at self drilling screws. Hammers for a few seconds then drives them in.
They are. I use my little deWalt for dismantling stuff (it will take wheel nuts off - just) and its bigger brother for the heavy duty stuff. It'll shift anything.
Might be a bit late to the party but here’s my two penneth Tek screws should work fine Hilton gun also would work fine but a bit brutish for me as it’s only 4/5 mm of steel I bought a hilti tek drill many years ago specifically for the tek screws great bit of kit think maybe the confusion over hilti drill/gun may have arisen there!! Now the truth is I still have the hilti tek drill in as new condition in the garage, it’s 110 volt if it’s any use to you ? Call it a permanent loan
I have an 18v Hitachi drill, I'll look at Hikoki impact drivers. Very kind offer, thank you! But I'm in Lancs, You're in Kent, I don't have a transformer soooo. I could do with a rattle gun anyway if only to take wheels off. I have Hitachi 18v batteries. I see they do a reasonable price 172Nm (126 ft/lb) "Screw: 4-10mm | Bolt: M5-M16 | HT Bolt: M5-M12" N mention of self drilling screws or An expensive (3x the price) 207 Nm 4 speed 3 anvil one. "Screw: 4-10mm; bolt: M5-M18; HT bolt: M5-M14; self-drilling screw: φ3.5 - φ6" Anyone care to say if I'll be disappointed with the 172Nm version?
