This Sammy's 8021957 Rod Anchor provides a secure anchor for threaded rods with its 3/8-16 horizontal female fitting along the screw head. The coarse threads of this fastener grip solidly into the wood and secure a tight connection between the wood base and the rod. It is a godsend for all your wood construction needs. Highly durable, easy to use and code compliant, it is the ideal choice for your pipe hanging, fire protection and electrical conduit applications.