Yellow flanged fork terminals are for 12-10 AWG wire. Flanged fork terminals are one of the most popular electrical connectors. They allow for easy attachment and removal from connections. What separates them from locking fork terminals? Locking forks "snap" around the stud or screw. Flanged forks have the ends of the forks bent up. This serves to "grab" the screw or bolt that they are being attached to. Due to their ease of use and narrow size, they are often used with terminal blocks. These high-quality terminals are available in nylon insulation. They are known for their ease of use and long term durability.