Timco Metal Construction Timber to Heavy Section Screws - Countersunk - Wing-Tip - Self-Drilling - Exterior - Silver Organic 5.5 x 85 - 100 Pieces Vertical Accumulators Robust plastic body and stainless

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Timco Metal Construction Timber to Heavy Section Screws - Countersunk - Wing-Tip - Self-Drilling - Exterior - Silver Organic 5.5 x 85 - 100 Pieces Vertical Accumulators Robust plastic body and stainlessDescription Timco Metal Construction Timber to Heavy Section Screws Countersunk Wing Tip Self Drilling Exterior Silver Organic 5. 5 x 85 100 Pieces product description: Specifically designed to attach wood to metal (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 thread to self tap into the metal. Product