Rated 4 out of 5Â by Audiboy Perfect weather resistance
Great for what they are designed for but this grade of stainless steel is a little soft compared to a plated steel screw. This means you just need to be a little more careful - easier to snap off a head or damage the posi-drive socket when driving without pilot holes.
1 Dec 2015
Rated 4 out of 5Â by gnattycole Good general purpose woodscrew
I've used these screws on a couple of projects including a mono pitched roof and a loft hatch installation. I like these screws. They drive easily with both cordless drill or impact driver and have good pull in and self countersinking. The plain shank is reduced diameter from the thread so reduces friction. I note some comments by other reviews where they have stated that the screws shear above the thread. I've only experienced this when I've had the misfortune to drive the screw into a knot but when using long screws like these, I normally pilot drill the holes first anyway.
The thing I like about these screws is that they have a large driver head (Pozi No:3). This give a good grip and this is a point over Spax equivalent which often have Smaller size drives for same size screws.
Just to test the shear strength of these screws, I drove one through a piece of CLS 4x2 and the scew pulled itself through until it ran out of thread. The head countersunk itself into the timber to a depth of around 3 inches. I know CLS isn't that hard but these screws don't exactly shear like chocolate either.
31 Aug 2015
Rated 1 out of 5Â by daaaa Not fit for purpose
Had a 20% fail rate either bending or shearing,
the only way I could use with 2 old 9 inch joists screwed together was by spraying with wd40 first.pay more and use spax screws-the rolls Royce,....-go in v easy
13 Oct 2014
Rated 1 out of 5Â by ambitioniscritical Shocking!
Expensive item that just does not deliver. Bends easily, sheers off after thread, usually when 60% inserted so a nightmare to remove.
I've used about 30 or so out of the box and have 5 break, another 5 bend and others simply round off the prodrive recess.
All in all, rubbish!
9 Sep 2014