Lock seam | Article about lock seam by The Free Dictionary
lock seam, lock joint
A joint or seam in sheet-metal roofing; the two edges are bent over in the form of hooks which are inserted in each other; then they are dressed down to form a seam.
References in periodicals archive
Finally, thermal deformation was controlled by adoption of an adhesive agent with low elastic modulus and the optimised position of the 3D Lock Seam
1) Technology to join dissimilar materials: adoption of "3D Lock Seam
" structure, where the steel panel and aluminum panel are layered and hemmed together twice.
A heavy-duty threaded base plate is joined to the can with a rolled leak-proof lock seam
The Void Former Shall be spirally lock seamed
and corrugated on patented special machine with three Nos.