The 4 hole - locking zinc hinge is die-cast black powder-coated zinc with a stainless steel pin. It is a higher-strength hinge that is commonly used to connect doors and plastic panels to T-slot profiles. The 4 hole - lock ready zinc hinge features a ratcheting clamp handle for locking the hinge in position. The suggested hardware to mount the hinge to a T-slot profile can be found on the "Suggested Hardware" tab.
For technical details and images, please search for the product using the 80/20 interactive catalogue found here: https://catalogs.8020.net/80-20-Catalog-26/C/.