Wedge Anchors

Select a diameter that matches the shear and tensile loads and a length that allows at least 5/8 inch (16 mm) of embedment beyond the required minimum for the anchor strength; ensure the anchor length clears the fixture thickness plus required embedment and any concrete cover per code or engineer recommendations

Choose zinc-plated or hot-dip galvanized steel for general indoor use and moderate exterior exposure; specify stainless steel (304 or 316) for marine, highly corrosive, or long-term outdoor applications where higher corrosion resistance is needed

Check the anchor’s rated working loads, material grade, and applicable standards or listings (such as ASTM specifications); higher diameter anchors, full-thread vs partial-thread, and anchors with published load tables designed for cracked or uncracked concrete indicate suitability for heavier or structural loads

Drill a hammer drill hole to the anchor’s specified diameter and depth, clean the hole of dust, insert the anchor through the fixture into the hole, set the anchor by tightening the nut to the specified torque using a torque wrench, and verify embedment and edge distances per instructions

Periodically inspect for corrosion, looseness, or concrete cracking around the anchor, retorque nuts if applicable to manufacturer torque values, and replace anchors that show significant corrosion, deformation, or movement

Wedge anchors are available across a wide range; budget options for basic zinc-plated anchors often fall below $50 for small packs, while specialty stainless or engineered anchors cost more; the category average price is around $80 per product

Use alternatives like sleeve anchors, epoxy anchors, or through-bolts when working with hollow masonry, thin base material, lightweight substrates, or when higher pullout performance in cracked concrete is required; select the anchor type based on substrate, load direction, and installation constraints