مسامير الخشب ت ُ ستخدم عند الانضمام من قطعتين من الخشب.
undercut الرأس ، فقط العمود من يخترق مسمار خشب ، لتجنب لتقسيم
ت ُ عد ws عادة ً ما تكون متوفرة أيض ً ا مع رؤوس ، أو فرن أو بيضاوية مسطح.
وصف
Wood screw is a thread forming screw with sharp thread at a coarse pitch. It is used for directly fastening two wood surfaces. Wood screws have a smooth shank that allows the screw to pull the two pieces of wood together for a tight joint to prevent the wood from pulling or splitting. Wood screws also taper along the threaded portion optimizing the screws holding power in wood. Pre-drilling is recommended.