Power Pro 47870 Lag Screws, 5/16" x 3-1/2", Star Drive Construction Lag Screws, Rust Resistant, Ceramic Coated Bronze, 1lb Box, 25 pcs

This products has features that are both impressive and unique. Topping the list is the new "Star Drive" technology which virtually eliminates campout for a smooth, effortless drive every time. Chances for splitting wood are greatly reduced by the patented cross-cut threads and the wood biting cut point. These two features combine to prevent wood splitting by grinding wood and removing fibers from the hole.