Specification of Self Drilling Screw (12 x 25)
Roofing Bolt is a bolt hex bolt screw that serves to connect the polycarbonate roof, plastic wave roof, lightweight steel frame or other similar roof so that glue strongly. The roofing bolt is equipped with rubber to prevent rainwater from entering interrupted - the size of the bolt also varies according to requirement.
Specification:
Material: Yellow Steel
Length (mm): 12 x 25
Isi (Pcs): 50