18-8 stainless steel hex tap bolts will have a typical composition of 18% chromium and 8% nickel

Over-sized thread diameter tightly fills the existing spike holes for better holding strength and a watertight fit #3 square drive virtually eliminates cam-out during hard to reach installations Durable UV resistant white and brown head paint matches most gutter systems Thick galvanized base coating guaranteed not to rust or react with aluminum Free driver bit included American made

1 1/8-7 Slotted Hex Nut Zinc Plated

15/64 Heavy Duty Drill Bit - Stubby Length

1-12 x 2 1/2 Socket Cap Screw Alloy

1/4 x 4 Flat Split Drive Anchor Mech Galv(100) 1 3/4-5 Socket Cap Screws Alloy 18-8 stainless steel hex tap1 4 x 4 Flat Split Drive Anchor Mech Galv(100) . The Split Drive Anchor is a one piece anchor with a split type expansion mechanism on the working end. As the anchor is driven into the hole, the expansion mechanism compresses and exerts force against the walls of the hole. This anchor can be installed in concrete, grout filled block and stone. Made of heat treated carbon steel and available in both zinc plated and mechanically galvanized finishes.