Fixing thread holds the board in place. Minimises creaking of floor structure. Fixing thread: securely and permanently attaches the flooring panel to the wooden floor structure and minimises creaking. Together with the unthreaded centre it allows the board to be pulled down tight (vice effect). SPAX T-STAR plus: secure bit grip, no cam-out effect, optimal force transmission. SPAX 4CUT point: allows screwing in without pre-drilling. SPAX ground serrations: up to the point. SPAX MULTI Head: flush countersinking, mills in wood. SPECIFICATION:
