Products

Large washer placed between the nut or bolt, screw head and the surface of the connected parts, used to protect the surface of the connected parts to avoid abrasion by the nut, increase the contact area between the connected parts and the nut, reduce the unit pressure acting on the surface of the connected parts.

Wing nuts and generally can be assembled and disassembled by hand without the use of tools, usually used in the need for frequent disassembly and not much force occasions.

The use of square nuts is the same as hexagonal nuts, and its characteristic is that when assembling and disassembling, the nuts are not easy to slip with wrenches, but can only be assembled and disassembled with live wrenches, dull wrenches, dual-use wrenches (open part), or special square hole socket wrenches. It is mostly used on rough and simple components.