We also have other sizes and types, check out our other listings! Product Description These are our version of the Sammy Screw , a vertical threaded rod anchor for wood applications. It fits a three-eighths by sixteen rod size and has an overall length of two and a half inches. The screw that drives into wood is 3/8 thread as well. Resulting in one of the strongest vertical rod hangers available. The anchor is made of steel, coated with an electro-zinc finish, suitable for wood installations. It's extended length allows it to penetrate several layers of drywall or other board material and still maintain its grip strength. Accommodates a quarter twenty rod size. Constructed from steel with an electro-zinc finish. Designed for vertical mounting. Product Highlights This anchor effectively installs into wooden structures to support threaded rods, ensuring secure and stable installation. Technical Specifications Rod Size: 1/4-20 Screw Size: 1/4 inches Overall Length: 2-1/2 inches Maximum Load: 1630 lbs (ultimate pullout), 1100 lbs Material: Steel Finish: Electro-Zinc Mounting: Vertical Head Diameter: 5/8 inches Product Type: Sammy Dewalt part #: PFM2251100 Dottie part #: SSW148 Sammy similar part number: 8013925 (2")