We’ve already said we’re ignoring the four and a half by 45 I would say don’t use that and use a four by 50 instead because we’re getting a very similar result but less cracking of the MDF gold screw now to write home about really I would stick to the turbo gold with the self drilling tip on it it seems to get a much better result this box for me isn’t worth the hassle the confirm at our great if you are going to do it I would do it with the five mill pilot so although Outdoor Screws we’ve kind of ruled that out from the test I am gonna include that as one of our winners drywall screw were ruled out and for me the winners got to be the four by fifty turbo gold so that’s how I got to the results so there you have it sorry for the gargantuan Lea long this has ended up turning into hopefully it’s of some use to you a few of you suggested putting some glue into the hole or around the thread of the screw before screwing it in that’s something a might test on a future but personally well I would certainly suggest you glue the overall joint absolutely personally. Large metal corner brackets. Metal corner brackets for wood. Heavy duty metal corner brackets. Long metal corner brackets. Metal corner brackets screwfix. Decorative metal corner brackets. Corner brace brackets. L brackets.
Outdoor screws screwfix. Railway Sleeper Brackets. Screwfix railway sleeper brackets. Railway sleeper brackets b&q. I don’t think there’s any point in also glueing the thread of the screw I mean at the end of the day if we’re getting 130 kilos on a single screw without glue I just don’t see the point in it and plus once the glue joint has dried that’s gonna take over from any loading that’s on the screw anyway because he had glue joints gonna withstand way more than the screw can withstand I’m not saying don’t do it if you want to put glue on your screws fill your boots also a couple of you mentioned that screws in MDF are generally subject more to shear loads rather than pullout loads I completely agree the reason.
We’re doing pullout tests is because it’s about the only test that you can do that’s a repeatable test that can be directly compared against other types of fittings shear load tests introduce a whole load of other factors like how much glue you use in the joint how big the joint is how many screws you use whether you’ve got biscuits or dominoes in the joint as well there’s so many other variables that come into play on a shear load test that for the purposes of this particular test I just wanted to get a direct strength comparison of pull forces will cover off shear loads on a separate if I introduce too many variables into this particular test the results are going to become completely meaningless remember as usual don’t go off my results for anything important that.
