Self-drilling screws double thread type17
Roof and wall panel over rigid insulation to wood structure

Features:

Double thread for the purpose using exterior roofing environment

High thread under the head prevents panel stripout

Type 17 point,Head style :HWF/HWH

Size from 505x60 to 5.5x125m/m,6.3x60 to 6.3x125m/m