Heavy-duty expansion anchors are mechanical anchors that create a secure hold by expanding within a drilled hole in concrete or masonry. As the anchor is tightened, the anchor body expands against the walls of the hole, ensuring a tight grip that can safely hold heavy loads. These anchors come in various materials, including steel and stainless steel, which are chosen based on the environment and load requirements.

One of the primary advantages of using neoprene washers is their ability to create a watertight seal. This characteristic is particularly beneficial in applications exposed to moisture, such as roofing, plumbing, and automotive systems. The neoprene washer prevents water ingress around the screw hole, which is essential in preventing rust and corrosion, thereby extending the lifespan of the joint and the materials involved. This property is invaluable in outdoor applications where exposure to rain and humidity can compromise structural integrity.

The primary advantages of M16 chemical anchor bolts include