13173-000 NuTone grille nut

Grille nut used for attaching various Broan-Nutone grilles. Threaded end is 5/16" diameter

Broan Nutone Exhaust Fan Grille Nut
Use with 8810, 8812,8831, 8833 ,8832N, 8832SA, 9605N & 9605 Exhaust Fans