Screw size for trestles

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    Mark Allison

    Hi, I’m new to all this and wondered what diameter screws are best for making the saw trestles? Next project after that will be the workbench. Does it really matter what screw diameter I use? I’m also confused about what head type I should get, there seems to be a lot to choose from. For example at screwfix I get all these different head types.


    mark edsforth

    Hi Mark. I find there’s never enough screws in my shop or they’re all the wrong size so worth buying a box of assorted sizes from screwfix, wickes etc.

    As important is making sure the driver you use (on a drill attachment usually) is the right size otherwise you’ll just keep turning the heads off! Definitely worth getting an assortment of driver bits to suit different screws.

    Good luck,


    Colin Scowen

    I stick with PZ2 heads, 4mm shank, single threads at various lengths (and a countersink bit). Don’t go for the fancy heads or self drilling threads, just drill pilot holes and countersink them.
    I also have 3.5 and 3 mil diameters as well, but they are not used nearly as much.
    Every driver set you might buy, and any drill driver / impactor will usually come with a pozi-drive 2 bit.

    Colin, Czech Rep.

    Sven-Olof Jansson

    Here’s a link to a set of Torx screws. They are fully OK in my experience. Pricier than pz or Ph, but still my choice. I don’t ruin their heads, which is welcome particularly for longer screws.

    Sven-Olof Jansson
    London, UK; Boston, MA

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