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

The carbon steel pin and mushroom head configuration make this anchor tamper resistant

1/2-13 x 8 Grade 8 Hex Cap Screw Yellow Zinc Plated

” are typically used to install items that will hang from hollow walls

3/4-10 x 3 3/4 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.