4.8x44 Ruspert Collated Screw Self Drilling Fine Thread

Specifically designed to attach wood to metal (Max. 4.0mm). Coarse self-tapping thread with wings designed to ream out the timber, this helps the screw 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. Exterior plating to achieve a high corrosion resistance.

• The collated strips are specifically designed to be compatible with all leading power tool brands
• Self-countersinking ribs
• Coarse 60° self-tapping thread for excellent holding power & rapid insertion
• Case & core hardened for durability & strength