Screw for screwing into a material of low strength
Screw for torque-limited fastening
Screw having a knurled portion
Screw having a screw thread formed with concave facets
Screw having a tapered thread
Screw having an improved head structure
Screw having cutting teeth formed on threads thereof
Screw head
Screw head with slant rib
Screw including a moldable mass to secure the screw against...
Screw member with biting features
Screw or nut packing micro-adjustment
Screw threaded fastener
Screw unit
Screw unit to join semi-rigid mats together
Screw with a convenient screw head
Screw with a convenient screw head
Screw with a plurality of screwing angles and mold device...
Screw with an improved head
Screw with an improved head structure and punch for forming...