PRO POWER SB-13 快速装配套筒， 13MM 100包
The is a 13mm mounting hole black Snap-fit Bushing made of ridged nylon 6.6 polyamide 6.6, with open-type grommet. This snap bushing features smooth and insulate raw-edged holes in metal chassis. Fits panel thickness 0.8 to 3.2mm. Protect electrical cables, ropes, utility lines through metal holes.