RUMORED BUZZ ON BESI I BEAM

Tapcon screws are a well known anchor that stands for self tapping (self threading) concrete screw. Larger diameter screws are known as LDT's. Such a fastener requires a pre-drilled hole—employing a Tapcon drillbit—and so are then screwed into the outlet employing a typical hex or phillips little bit.Angkur bounding bekerja dengan cara mengikat