Low profile head for connecting Siniat metal components beneath plasterboard. Available in Self Tapping, used for thin gauge metal studwork (under 0.7mm thick) Available in Self Drilling, used for thick gauge metal studwork (over 0.7mm thick) Fine threaded screw Phillips head Carbon steel screws with Zinc Coating Manufactrured to BS EN 14566 Siniat Wafer Head screws are used to attached metal to metal within partitioning systems, mostly Stud to Track, and where there is a need for plasterboard to be placed over the screw head. Length 12mm Gauge 4.20 mm Box Quantity 1000 Material Metal Type Drywall Self Drilling Screw Flexural Strength Pass Reaction to Fire Euro class A1