滚花头螺钉 [机] milled screw ; screw with knurled head ; mill headed screw

直线滚花头螺钉 screw with straight-line knurls ; screw with straight-line

塑料滚花头螺钉 Plastic diamond knurlhead screws

滚花头螺杆滚花头螺钉 knurled screw

滚花头螺杆 knurled screw

滚花平头螺钉 Knurled screws ; knurled thumb screws thin type

滚花高头螺钉 Knurled thumb screws

圆头滚花螺母 Knurled nuts with collar

厚圆头滚花螺母 Knurled nuts