M6 x 60mm length lifting eye bolts made of stainless steel known as long shank, comes with stainless steel nut and washer Eye bolts Made of stainless steel, our eye bolts are both attractive, rust resistant and durable, meaning they are ideally suited to a range of practical tasks Easy to installExpansion is created by tightening a threaded bolt that draws a conical cone expanding a sleeve against the walls of the hole. Wide applicationUsed in concrete and masonry. Widely used in fence, burglar-proof doors and windows, canopy, air conditioning fixing, home decoration, engineering, etc. Hole size: Select an impact drill bit of the same diameter as the expansion screw expansion tube and install it on the electric drill to drill the wall, with the depth of the hole being the same as the length of the bolt. The expansion tube should penetrate the wall, and as long as the threaded part is long enough, the sleeve part will be deeper and firmer. It should be noted that the expansion screws should be mounted on a relatively rigid substrate. Pack of 1010pcs M6 x 60mm expansion bolts. luckymeet