NOT KNOWN FACTS ABOUT HARGA BESI HOLLOW

Tapcon screws are a popular anchor that means self tapping (self threading) concrete screw. Larger diameter screws are known as LDT's. This kind of fastener requires a pre-drilled hole—using a Tapcon drillbit—and are then screwed into the hole applying a standard hex or phillips little bit.Angkur dengan cara kerja friction akan menciptakan gaya