National Hardware's 5/16" Clevis Grab Hook is designed for making quick connections with chain in industrial and construction applications. Manufactured from stainless steel for durability. Installs with removable clevis, making rigging easier. Not designed for over-head lifting, and always use with chain of equal or lower grade. Meets Grade 43 hook specifications. Heavy Duty Rating with 3,900 lbs. Safe Working Load, always follow safe working load (SWL) limits included on packaging. National Hardware's Lifespan Limited Lifetime Warranty.