Posted: May 27, 2017 at 7:59 pm What is the point of using screws with a Phillips head, flathead, allen, hex, etc. instead of just having one universal screw type? submitted by /u/EthanNewb to r/askscience [link] [comments] Source: Reddit: TGIOKDI Upvoted Leave a Reply Cancel replyYou must be logged in to post a comment.
