THE BESI HITAM DIARIES

Tapcon screws are a favorite anchor that means self tapping (self threading) concrete screw. Larger sized diameter screws are referred to as LDT's. This kind of fastener needs a pre-drilled gap—employing a Tapcon drillbit—and are then screwed into the hole employing a typical hex or phillips bit.Angkur bounding bekerja dengan cara mengikat bolt