GROMMET, GREY, M16; Fixing Hole Diameter:16.5mm; Max Panel Thickness:3mm; Max Cable Diameter:10mm; Min Cable Diameter:5mm; Material:Thermoplactic Elastomer; Colour:Grey; External Diameter:23.5mm; IP Rating:IP67; Max Operating Temperature:125°C; Min Panel Thickness:0.5mm; Min Temperature Operating:-50°C; Thread Size:M16