Screw unit to join semi-rigid mats together
Screw unit with transversely adjustable support sleeve
Screw washer
Screw with a convenient screw head
Screw with a convenient screw head
Screw with a plurality of screwing angles and mold device...
Screw with a shearable head, and a tool for tightening such a sc
Screw with an improved head
Screw with an improved head structure and punch for forming...
Screw with breakaway and methods of using the same
Screw with compound recesses
Screw with cutting edge
Screw with cutting head and self tapping cutter
Screw with elastomer component to provide vibrational decoupling
Screw with filler-receiving head
Screw with groove for self-lock and method and rolling flat die
Screw with guide wings
Screw with improved head design
Screw with increased driving resistance at proper depth
Screw with integrated screwdriver