Home / Breakaway Kits / Hardware / 4 1/2″ Butterfly Hinge 4 1/2″ Butterfly Hinge SKU: J-TBH02 Category: Breakaway Kits / Hardware Description Description Butterfly-style hinge for welding, often used for heavy-duty applications. 4-1/2″ (4.5 inch) length. Raw steel finish. 7/16″ pin diameter. Includes a grease fitting for lubrication. Typically 9-gauge steel Related products Switch Assembly, Wired, 12V5A Battery, 1.0Amp Charger Read more 2″ Round Mounting Bracket Read more Top Load Break Away Kit Read more 2 Pc. Amber Light Bar Covers Read more