Timco - Solo Collated Chipboard & Woodscrews - PH - Double Countersunk - Yellow (Size 4.5 x 70 - 500 Pieces)

Thread Dia. mm - 4.5 Length mm - 70 Thread Length mm - 46.7You may also like Timco - Concrete Screw - TX - Flat Countersunk - Exterior - Silver (Size 7.5 x 120 - 100 Pieces).