Bi-Metal Wing Tip No3 S/Drill Screw -Timber to Light Section Steel 200PCS

Specifically designed to attach wood to light section steel. Coarse self-tapping thread with wings designed to ream out the timber, so the screw can achieve Max. R.P.M. without burning out. When the wings hit the metal they will break off to permit the thread to self-tap into the metal.

• Hardened carbon steel drill tip fused on to an A2-304 Austenitic Stainless Steel body

• Corrosion Rating (1-5): 4 - Urban & industrial areas with a moderate salt atmosphere

• Finish Exterior: (Silver Organic)

• Head Type: Countersunk with Ribs

• Thread Type: Coarse Self-Tapping

• Pack Type: Box

• Material: Bi-Metal/A2-304 Stainless Steel/Carbon Steel

• Recess Type: Phillips

• Point Type: Self-Drilling No.3

• Substrates: Steel, Timber

• Thread Coverage: Fully Threaded