Thread: Square drive screws

Hi Jeremy. I have seen these around a bit but haven't used them to date. What makes them so much better? I'm assuming the drive connection is much more positive and secure than pozi-drive? I have used the hex drive screws a bit and these are also good - until your hex-drive bit gets a bit worn
I prefer the appearance of the square drive heads also.

Wayne

The Sachy's are great for holding on the drill and banging into the wood to start in awkward areas but.....

Don't fall for thinking they are stronger, you may wind up snapping a bunch of heads off. Still counterbore the holes where possible.

The Sachys are also good for "dress" screwing. If you align them as diamonds and sand them down flat with the surface they look pretty cool.

I have used them a fair bit and, so far, I have never snapped a head off. I do not counterbore the holes at all.
I just got so fed up with round holed philips head screws that I got a few boxes of these and have never looked back.
I buy mine from Lincoln Sentry.
Wolffie

For faceplate turning on a lathe, there is nothing better.

I rarely counterbore and haven't snapped a head off yet, even when screwing into hardwood. But I don't often use a power driver - the most I usually use is a long-handled Yankee, so I probably don't get enough torque to snap a head.

They are really positive to use - so far I haven't stuffed a screw head, in situations where a Phillips or a Pozi would have had a churned head.

I Agree they are brilliant. I only use phillips head if I have been too disorganised to order ahead of time. Which reminds me.

I have snapped a couple but I think they are stronger. I snapped a driver bit!! I was driving 100m 10g screws and the driver head (old and well used) actually snapped and the screw didn't!

In terms of countersinking/boring get the drill bits that have an integrated counter bore and a hex head (from sachys) I have two sizes and have used them in aluminium when building a router table and they did it cleanly and with ease.

SN

jmk89 So that makes two of us who still make use of the 'Yankee"

Love 'em.

I think most of the phillips head available these days are just such poor quality, soft metal and the slots rip out very easily.

Never had the problem with the Sachys Robertson square head, and I'm guessing they're made from tougher stuff.

Also like the way they look.

Tex

I have used them on occasions and find the driver doesn't slip as on the phillip head screws

Im a sachy fan too n use m exclusively HAve never let me down n are superior quality

Highly recommended

Regards Lou

Originally Posted by jmk89

.................Why would anyone use anything other than these?...................

I've used them (sample bag came with something I bought) and I honestly couldn't say that they were any better than the screws I currently use, although my trial sample wasn't that large. I buy countersunk, philips head, self embedding chipboard screws in boxes of 1000. I probably go through 20,000 screws a year easily. I reckon I cam out (strip) less than 20 screws a year and I probably snap off about half as many screw tips. Why would I go to the extra expense of another type of screw and driver when I have a failure rate of maybe 1 in 1000? I'll be the first to buy something that will save me time, money, work or aggravation but these don't fit any of those categories.

Mick

stupid question but: what type of screwdriver do you use for these screws

Stirlo,

You buy a square head driver. Like other screws there are several sizes and you obviously have to use the correct size for the screw.

PS I like the brass ones for the finer projects.

Originally Posted by ss_11000

stupid question but: what type of screwdriver do you use for these screws

+

Special square-head drivers, available in 3 sizes and hand-held or bits to chuck in your drill driver. Look here:

http://www.mcfeelys.com/product/HX6-...-Power-Drivers