TIMCO Self-Drilling Wing-Tip Steel to Timber Heavy Section Silver Screws - 5.5 x 100 Self-Drilling Point (3.9 Gauge) Wafer head for improved clamping

Wafer head for improved clamping and a low profile finish

Specifically designed to attach composite panel to light section steel (Max

Easy to apply using a watering can or pump sprayer

Strengthening inside corners

The dual angle full thread design ensures maximum pull-out strength on every fixing

TIMCO Self-Drilling Wing-Tip Steel to Timber Heavy Section Silver Screws - 5.5 x 100 Self-Drilling Point (3.9 Gauge) Wafer head for improved clampingSpecifically designed to attach wood to heavy section steel (Max. 12mm). Metric 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 thre