4pcs heavy duty shield anchor body only 316 stainless steel type ... heavy duty shell anchorSS316 4pcs heavy duty shield anchor202,304,316 stainless steel,carbon steel ... area and reduces concrete stressHeavy-loading capacityPreassembled for faster, easier installationsDynabolt can be installed through ... products are sleeve anchor, wedge anchor,heavy duty shield anchor, drop-in anchor, hollow wall anchor, ...