Stainless Steel Long Eyebolt Ring Lifting Eyebolt

M3-M24 GB 304 stainless steel Eyebolt Extension Long Eyebolt Ring Lifting Eyebolts  Non tapping screw are Machine screw, the pieceworker to be fastened must be tapped with taps in the Screw hole in advance to match the screw threads. The difference between tooth screws and other screws depends on whether they can be used together with nuts. Tooth screws can be used with nuts. And relative to the screws of other teeth, there are self-tapping screws. The nut of this kind of screw has no...