This is a A-B1ABK1610 CONNECTOR-TWIST CLEVIS-SCREW-STAINLESS PN: B1ABK1610Main Description As Following : A-B1ABK1610 CONNECTOR-TWIST CLEVIS-SCREW-STAINLESS P.N: B1ABK1610 This carabiner or attachment tool does not meet ANSI Z133.1 standards for climbing or life support. This tool is extremely useful for other tasks including light-duty rigging, tool attachment and storage, line redirection, and many others.Gate Opening: 5/8" (16 mm)Locking Mechanism: ScrewMaterial: Stainless Crossed From: K1610 US RIGGING SUPPLY Found in Section & Models : Sunbelt - Arborist > Hardware, (Miscellaneous) ACCESSORY CONNECTORS: (UNDEFINED) Associated Items : New Also This is An Aftermarket Product And : High Quality Afternaket Shipped from Both US and Canada