Timco - Wing-Tip Self-Drilling Screws - Countersunk - PH - For Timber to Light Section Steel - Zinc (Size 4.8 x 38 - 260 Pieces)

Specifically designed to attach wood to metal (Max. 4mm). 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.

• Thread Dia. mm - 4.8
• Length mm - 38
• Head Type - Countersunk with Ribs
• Recess Type - Phillips
• Point Type - Self-Drilling
• Finish - Zinc
• Material - Case & Core Hardened Carbon Steel
• Effective Thread Length mm - 16
• Max Drilling Thickness mm - 4.0
• To Suit Timber mm - <18