Square nut a fastener that mounts to the prepared hole that corresponds to the outer diameter of the nut cylinder. When driving in, the teeth cut into the wood, after which it can be screwed, from the opposite end of the hole, any, appropriate in size, fasteners with metric threads.
Scope AN 90 is used in furniture production, for creation of an element of threaded connection on sheets of lumber (a chipboard, plywood, various plates) or on wooden designs.
Material stainless steel. The grade of steel A2 allows to use fastenings at considerable differences of temperature and in the aggressive and humid environment.
Coating Zinc (Plated) protects against corrosion if you plan to use fasteners in aggressive conditions.
Analogs: ART 9312. ART 88108