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Hex Head Self Drilling Screw c/w Washer For Light Steel
For light steel 1.5 - 3.5mm
Carbon steel screws for drilling and tapping into steel in one application
Superior corrosion protection - high tech three layer coating for superb rust proofing qualities.
Hexagon heads are 5/16 AF
16mm bonded washer provides weatherseal and also isolation of screw from substrate