Concrete screw capable of preventing a concrete object from being damaged by slant of the concrete screw and further reducing the friction and lowering the screw-in torque
TW201817984A
Anti-cbacking wood screw and manufacturing method thereof characterized in that the wood screw has a spiral cutting groove with a trapezoidal cross section to receive and extrude wood chips during locking
CN106291716A
Bolt gets loose and detects device and detection method thereof
TW201638482A
Screw bolt loosening detection device
TW201632744A
Screw for avoiding splits and burrs
TW201632313A
Slant lock jig
CN105982672A
Skin detection method and device
TW201628554A
Skin detection method and skin detection device
CN104274171A
Method and device for detecting signs of life of aquatic animals
TW201500005A
Detection device for detecting sign of life for aquatic animal and detection method thereof
TW201137246A
Wood screws
US2009175702A1
High torque transmission fastener and socket therefor
TW200930904A
Screw for avoiding splits and burrs
TW200930902A
Screw, punch and screw driver bit
US2009110508A1
Screw Band
EP1932623A1
Combined screw strip and strip-advancing mechanism for a screw driving gun
EP1803945A2
Wood screw
US2007292239A1
Screw strip with ribs extending along full length thereof
EP1860333A1
Screw strip with ribs extending along full length thereof
AU2006202250A1
Screw strip with ribs extending along full length thereof