An anchoring fastener adapted to be fixed by adhesive in concrete, stonelike material and wood

摘要

This fastener (1, 10) has a number of circumferential collars (3, 13), the lateral sides (5, 15) of which include an obtuse angle with the adjacent shank periphery. Thereby an equal stress distribution in the adhesive layer and a larger holding force are achieved. Fasteners for securing building parts have a 106° obtuse angle, whereas fasteners especially adapted for securing rail carriers have a 135° angle.