On Thursday 05 April 2018 20:20:53 Chris Albertson wrote: > More accurate if you turn down the screw heads to make them 0.5mm > smaller. In fact if you want all your screws heads to have the same > diameter you have to turn them yourself. I looked up tolerances a > while ago and it is abut 0.5mm on the head diameter. Likely within a > batch they are all the same but if you buy more they high be > different. So turn them to the minimum allowed head diameter. I was > surprised the tolerance was so wide. >
Half a mm seems like a lot, for a m4x.7x6mm screw. Thank $DIETY the screws aren't that sloppy. > Way did I bother to look this up? I printed a plastic part and the M4 > cap screws did not fit in the counterbore. Debugging the problem > found the ISO screw standard and the fact that plastic changes as it > as it cools. One must allow for both. > No doubt true Chris, but thats why, needing a few more than 50, I bought 3 boxes of 50 ea. So they'd all be a good chance of being the same size. So far, those I've measured have been from one or 2 red ones under 7.00mm. Crossed fingers at my age can be painfull, but I think I've got this one covered now. But I didn't say that in front of Murphy. :) -- Cheers Chris, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
