Roofing Self Drilling Screw (12 x 70)

Specification of Roofing Self Drilling Screw (12 x 70)

Specifications:

• Contents: 25 Pcs


• Used : Iron


• Length : 7 Cm


• Diameter : 4 Mm

How To Use:

• Installation Screw Not Too Tight


• Overlapping At Least 1 Wave (Wave Roof)


• Screw Holes In The Roof Made ​​Larger 3-5 Mm From The Diameter Screw, Make Room For Expansion And Contraction Due To Temperature Weather


• Most Of The Screws Tightened By Turning It Clockwise


• To Open A Combination Lock Using Screw Shaped Ring