National Hardware's 5/16" Clevis Slip Hook is designed for making quick connections with chain in industrial and construction applications. Manufactured from forged steel for durability. Installs with removable clevis, making rigging easier, always use with chain of equal or lower grade. Designed to make quick connections with chain in industrial and construction applications. Not designed for over-head lifting. 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