ST Fastening #17 x 1" ZXL Tapping Steelbinder Metal Roofing Stitch Screw Polar White Pkg 250 Hidden Deck Fastener Systems The PRO250G2M35K combo system includes The PRO250G2M35K combo system includes This product is intended for use with 6x posts or columns and 4x beams but is also available in a wide range of other sizes and both nominal and rough cut lumber Included with this column cap are the necessary Simpson Strong Drive SDS connector screws to provide fast installation and lower profile than standard bolts and factories Versatile Sizes: Available in various sizes and finishes to meet diverse project requirements