Material: 304 stainless steel, protection, sturdy and firm.
It used for fixing heavy duty wall mount bracket, ceiling suspension ring, hammock swing and small wall equipment, etc.
Expansion is created by tightening a threaded bolt which draws a tapered cone expanding a sleeve against the walls of the hole.
These strong sleeve anchors are weatherproof, which are easy to install, could be used in concrete and masonry.
Application -- nut expansion is widely used in fence, burglarproof doors and window, canopy, air conditioning rack fixation, home decoration, engineering, etc