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Timco Self-Drilling Heavy Section Silver Screws with EPDM Washer - 5.5 x 80 (100 Box)
Timco Self-Drilling Heavy Section Silver Screws with EPDM Washer - 5.5 x 80 (100 Box)Used for attaching metal to heavy section steel (Max. 12mm) without the need to pre-drill a hole.