THE DEFINITIVE GUIDE TO HARGA BESI HOLLOW

Tapcon screws are a well known 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 hole—utilizing a Tapcon drillbit—and they are then screwed into the outlet applying an ordinary hex or phillips little bit.The drive-transfer system is ba