Stainless steel expansion screw

Stainless steel expansion screws are generally referred to as metal expansion screws. The expansion screw is fixed by using a wedge-shaped slope to promote expansion to produce a frictional grip achieve a fixing effect. Widely applicable to concrete-embedded operations. Such as: architectural curtain wall, interior decoration, air conditioning, lighting, advertising sign, TV wall hanging, sanitary (kitchenware) water electricity other related industries fields.