Use Bridgeport’s 1000 Trade Size 0 (5/16") Anti-Short Bushings to protect conductor sheathing from sharp edges and rough ends within AC, MC and MCI-A cables. Place the bushing between the outer metal armor and the conductor at the point of connection to form a protective shield. Called "redheads," these bushings are made from sturdy red polyethylene plastic and are rated up to 90℃. Bushings are both UL and CSA listed. Trade size 0 bushings fit cable sizes 14/2, 14/3 and 12/2.