For solid wooden floorboards as well as wall and ceiling profiles with tongue and groove. Screwing in without pre-drilling (wood-dependent) directly into the torque. Screwing in without pre-drilling (wood-dependent) directly into the torque. SPAX CUT point: precision placement, allows screwing in without pre-drilling (wood-dependent), effectively reduces splitting of the torque. Small 60° milling head: clean, flush sinking of the screw head. SPAX T-STAR plus: secure bit grip, no cam-out effect, optimal force transmission. Partial thread: firm tightening of the upper wood layer. SPAX typical ground serrations: quick and secure fastening. SPECIFICATION: