Material: Made of 304 stainless steel, high hardness,rust-resistance, safety, and anti-corrosion. Not easy to slick, deep thread, no deformation, smooth thread, high precision and low abrasion. Design:The locking type wire screw sleeve can lock the screw into the threaded hole, so that the screw is not loose when subjected to shock vibration, which is better than the normal locking device.
