NOT KNOWN FACTS ABOUT HARGA BESI HOLLOW

Tapcon screws are a popular anchor that stands for self tapping (self threading) concrete screw. Larger diameter screws are called LDT's. This sort of fastener needs a pre-drilled gap—employing a Tapcon drillbit—and they are then screwed into the outlet using an ordinary hex or phillips bit.Dengan menggunakan tabel ini, kontraktor dan insinyur