Horiznext 3/8"x 3" inch Stainless Steel Standard Strong Wedge Anchor, Fasteners for Concrete (4 pcs)

* Made of stainless steel that resists pressure. Hole Diameter/Bit Diameter: The anchor requires a 3/8" hole to be drilled in the base material (Concrete only). The hole should be drilled with carbide tipped bit that meets ANSI standards and used in a hammer drill. Minimum Embedment?The minimum anchor embedment into the concrete is 1-1/2". Therefore, the anchor must be installed so that a minimum of 1-1/2" of the anchor is embedded into the concrete. Maximum Fixture Thickness: The maximum fixture thickness or the maximum thickness of the material being fastened for a anchor is 1-1/8". This will ensure that the minimum embedment of 1-1/2" will be met. Fixture Hole Diameter: The 3/8" diameter anchor requires the hole in the fixture to be 1/2". Torque Value: between 25 - 30 ft./lbs Spacing between Anchors: a minimum distance of 3-3/4" Edge Distance?1-7/8" * Designed for use in Concrete only, and should never be used in block or brick base material. * Used in wall, door, concrete, masonry cement, fence, industrial, house and garden etc. Material: stainless steel 304 Package Included:4 pcs.