3/8-16 x 1 1/2 Grade 8 Hex Cap Screw Plain Domestic USA (675)

7/16-20 x 7 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (125)

the screw lays flush with its substrate

1/4 x 12 ITM SDS Plus eVolution™ Hammer Drill Bit

these anchors offer maximum resistance to corrosion and come in a box of 25

1-1/16" X 2" HSS Annular Cutter, Qualtech, Premium, DWC5-530-236 Square Trim-Head Wood Decking Screws 316 Stainless Steel 3/8-16 x 1 1/2 GradeAnnular cutters are designed for fast, efficient hole making. Annular cutters cut only that material necessary to produce a quality hole. Works with Hougen Magnetic Drill, Milwaukee and similar machines.