tag:blogger.com,1999:blog-4674854136885417882.post1458005056867711574..comments2014-02-21T16:57:40.207-08:00Comments on EC Sketch Portfolio: A screw with a lot of torqueECSketchPortfoliohttp://www.blogger.com/profile/02607382968586566062noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-4674854136885417882.post-39099707493729681972007-12-14T04:38:00.000-08:002007-12-14T04:38:00.000-08:00It looks like the grooved bolts. They are used for...It looks like the grooved bolts. They are used for hight torques, with a special key. It may apply well on screw heads with a form adapted to plug the screwer easily. It has to be calculated regarding pressure constraints on the screw. A way to ameliorate it may be to make a full cross to low this pressure.Anonymousnoreply@blogger.com