Sammys Vertical Anchor Super Screw with 1/4 in. Threaded Rod Fitting

Fully Threaded Rods & Studs by SAMMYS. Details: female fitting on the screw head. The Teks technology drill bit on the tip of the fastener drills its own hole and grips solidly into the steel base, thus providing a secure connection between the rod and the steel base. It is a godsend for all your overhead steel fastening needs. Highly durable, easy to use and code compliant, it is the ideal choice for hanging sprinklers, pipes, electrical fixtures and HVAC equipment to steel purlin, structural beams and open web joist.