Offering the highest pull-out strengths, adhesive grips the anchors' lobes and knurls to keep anchors from shaking loose. These anchors are often used to secure heavy machinery with jarring starts and stops, such as compressors and compactors.

To install, fill a clean, drilled hole half full of epoxy adhesive (sold separately). Thread a screw or threaded rod into the anchor and then slightly twist the anchor into the hole until it's flush with the surface. Then, hammer the head of the screw or rod a few times for a snug fit. All create a permanent female-threaded connection that lets you remove and reinstall a screw or threaded rod.

Zinc-Plated Steel—The most common choice for areas with occasional exposure to moisture.

Super-Corrosion-Resistant 316 Stainless Steel—Superior to 18-8 stainless steel, these anchors won't degrade when exposed to harsh weather, salt water, and most chemicals.