8AN PTFE Hose End Fitting Straight Black for PTFE Hose Only. Thread Size: 3/4-16 UNF. Working Temperature Range: -40°F-248°F. Style: Straight. [Built to Last] The one-piece PTFE hose end fitting is made from lightweight 6061-T6 aluminum alloy, and a black anodized finish on the surface increases durability, anti-corrosion, and wear resistance.