Standard size M8 expansion bolt, 60mm total length, with flat washer and hex nut.. 304 stainless steel. Sturdy and firm, resistant to rust and corrosion. Concrete expansion bolt and masonry expansion bolt, easy to be mounted.. Widely used in fence, burglarproof doors and window, canopy, air conditioning rack fixation, home decoration, engineering, etc.. If the wall is built by relatively soft brick, it may need to make the hole which is 1mm smaller than suggested.. Air brick, foam concrete blocks, are not suitable for these expansion bolts..
