4pcs Knurled Concrete Anchors Carbon Steel Expansion Bolts for Fixing

Concrete knurled anchor bolts--drill a hole on the wall, put the expansion screw into the hole, and the nut of the expansion bolt outside the opening with a wrench to achieve the expansion effect, knurled drop in anchors; Carbon steel knurled anchors--adopt high grade carbon steel material, very sturdy and durable, can withstand long period of time, solid concrete knurled bolts; Solid concrete drop in anchors--the expansion sleeve bolts are made of carbon steel, which is wear-, - and durable, concrete anchors; Knurled anchors--fine workmanship, durable and sturdy, not easy to wear or tear, you deserve to have one, carbon steel concrete anchors; Knurled anchors for concrete--it can be used to fix heavy household items such as water heaters, air conditioners, anti-theft doors and windows, canopies, etc, solid concrete knurled anchors

What's in the box
4 x Fasteners