5 SIMPLE TECHNIQUES FOR FLANGE LAP JOINT

Tapcon screws are a favorite anchor that means self tapping (self threading) concrete screw. Greater diameter screws are called LDT's. This sort of fastener needs a pre-drilled gap—using a Tapcon drillbit—and they are then screwed into the outlet making use of an ordinary hex or phillips little bit.Angkur dengan cara kerja friction akan mencipt