THE DEFINITIVE GUIDE TO HARGA BESI HOLLOW

Tapcon screws are a favorite anchor that means self tapping (self threading) concrete screw. Larger sized diameter screws are called LDT's. This sort of fastener needs a pre-drilled hole—employing a Tapcon drillbit—and so are then screwed into the opening employing a normal hex or phillips bit.The driving Electrical power is frequently furnishe