SLING BESI FUNDAMENTALS EXPLAINED

Tapcon screws are a well-liked anchor that stands for self tapping (self threading) concrete screw. More substantial diameter screws are called LDT's. This sort of fastener demands a pre-drilled hole—using a Tapcon drillbit—and are then screwed into the hole making use of a normal hex or phillips little bit.Pelatihan: Pekerja harus mendapatkan