Fastener for driving into hard material by explosive power setter

摘要

The fastener has a stem (6) with a point (8) at the material facing end, to which a load engagement member (7) is joined against the drive direction. The stem is surrounded along part of its length by a slit sleeve (9) axially rigid and radially elastically deformable. The sleeve outer contour tapers in the drive direction in its settable section. The axial length of the sleeve is 0.3 to 0.8 times the stem length. The sleeve is typically of steel and may be flush with the stem. The sleeve may pass through a holder of specified length.