Not known Facts About harga besi hollow
Tapcon screws are a well-liked anchor that stands for self tapping (self threading) concrete screw. More substantial diameter screws are often called LDT's. Such a fastener requires a pre-drilled hole—using a Tapcon drillbit—and so are then screwed into the outlet using a regular hex or phillips little bit.Untuk memastikan angkur baja yang terp