A screw type fastener for use in fastening drywall to a structural member while generating a gap between structural member and drywall to produce sound insulation, the fastener including a shank having a head end and a point end, a first threaded section and a second threaded section, said first threaded section being closer to said point end than said second threaded section, said first threaded section having threads that have a first pitch and first thread diameter, said second threaded section having threads that have a second pitch and a second thread diameter larger than said first thread diameter, wherein when the screw type fastener is screwed through drywall into a structural member, a gap is generated between said structural member and drywall.