A screw that can drill and tap its own hole as it is driven into the material.
Self drilling screw are the screw that has a drill point. It drills its own hole and cuts/taps the threads thus, making it a time saver as no pilot hole is required to be drilled in prior.
Roofing
Metal Pipes
Aluminum Channel
Sheet Metal
CSK
HEX
PAN
HEX WASHER
TRUSS
HEX EPDM
WAFFER
CSK
PAN
TRUSS
WAFER
HEX
HEX WASHER
HEX EPDM