The 170647-2 is a closed ring tongue terminal designed for heavy-duty electrical connections on 16–14 AWG copper wire. It features an M5 stud with a 5.26 mm diameter, a closed barrel construction with straight orientation, and tin plating for corrosion resistance. The terminal has a tongue thickness of 0.79 mm and a product length of 26.49 mm, with compatibility for insulation diameters ranging from 3.8 to 6.4 mm. It operates reliably across a temperature range of 0–105°C and is partially insulated with insulation support retention. This terminal is commonly used in automotive, industrial, and power distribution applications where secure, durable ring connections to M5 studs are required.