Screws Zinc
Why do my wood screws always get ruined?
Hi –
I can’t tell you how many times my wood screws get ruined when the head of the screw gets bored out by my drill (and I have to wrench the screw back out, which takes for ever). Do I have to pre-drill every hole? I know that I’m not drilling too fast…
I screwed down a deck’s worth of cedar with no pre drills and no problems, but little projects around my house are killing me.
To me, I either have to predrill everything or buy better screws. Mine are regular wood screws from Depot. Zinc, I believe.
I know this is super basic, but do you have any helpful shortcuts/hints?
Thanks,
Here are some basic tips:
Use a good tip – it needs to be the right size and type, undamaged, and not rounded off on the edges. When using “phillips” bits, there are 3 sizes, #1, #2, and #3. #2 is the most common size.
Use the clutch setting on your driver. I don’t know how many screwheads I’ve seen my employees strip, becuase they didn’t adjust the clutch from ‘drill’ to one of the number settings for the driver. What number you actually need, depends on what you are screwing into – how hard it is. I start with a lower clutch setting, and move to higher settings, as long as the screw is being left protruding.
Most importantly – keep the driver in line with the screw. The most common reason for a screw head to strip out, is because the driver was held at an angle to the screw. I had one fellow, that stripped every single screw. I could use the same driver, screw, and setting, and get a perfect set, where he would strip it out — until he learned to hold the driver straight. Working in softer materials, you can get away with sloppy handling of the driver, as it is more likely to push the screw in, even if being held crooked – not so with harder materials. You have to hold it straight in line with the screw.
You will also find that some screws are ‘softer’ than others — for example, stainless steel screws are notorious for stripping out, because they are so soft. For this type of fastener, you need to purchase a softer metal tip, so that the tip will break, before the screw head strips out. Buy extra tips, hehehe. Brass screws are the same way – its a softer metal.
Where possible, use a screw design that is made to grip better, and be less likely to strip out, like the “square drive” (aka ‘Robertson’ head). Where the ‘Phillips’ head looks like a “+” sign, the ‘square drive’ is just that, a square socket. These also come in different sizes, so it is important to get the correct bit for the screw. Others are ‘clutch’ bits, “Torx”, etc. (you find ‘torx’ head screws in a lot of automotive applications)
I prefer to use the square drive wood screws myself. I know the local hardware store pushes ‘sheetrock’ screws to be used in most applications, but in my experience, it’s too easy to snap them off – they’re not as strong as wood screws.
Have Fun
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