It's plastic and broke on the first try to take it off. Was only on the heater for a day. I had to use pliers to pry it out of the radiator.
GOOACC GRC 30 Retainer Expansion Replacement: Optimal Solution for Superior Control and Durability
7 Review
π© Ginsco 102pcs Bumper Push Fasteners: Ultimate Replacement Kit with 6.3mm, 8mm, 9mm, 10mm Rivet Clips & Expansion Screws
6 Review
π‘οΈ 3M 3614 15: Ultimate Protection for All Surfaces
6 Review
GOOACC Retainer Fastener Extruded Infiniti
3 Review